I contacted the customer support for all of them and they said they can't do anything about it. To change the customer's e-mail address, I need to prove I'm the customer, and obviously I have no idea who they are.
So I gave up and implemented a Gmail filter in the end, but I definitely wish that parallel with the traditional unsubscribe, there was a way to say "this isn't that person's e-mail". Where I don't have to prove I'm the person, I just have to demonstrate I receive the e-mails.