Go to settings, in the right bottom there is a small option to delete.
Chat with our AI personalities
Unsubscribe me from answers and any product connected with it NOW.
'Unsubscribe' basically means in modern terms, to remove your name from a list.
You no longer receive mail from them.
When you receive an e-mail off of a mailing list you don't want to be on anymore, there should be an unsubscribe link near the bottom clearly marked. Otherwise, you will need to go to the websites and contact them and request they remove you. Another way, which would be easier if you have many lists to take yourself off of, would be unsubscribe.com. It is now a free service, and it does require that you download their add-on.
This depends if the unwanted email is safe or not. If you are dealing with a secure website then a simple e-mail to them will often stop them from sending stuff to you. If it is spam, then you shall have to block their address.