I think you’re misreading this. OP has an email account. Someone else signed up for some website that doesn’t verify that you own the address before allowing you to log in and use the service. If the site did verify it, the user wouldn’t have been able to log in because OP would have been getting the verification emails, and not the user.
Later, after OP told the user and they failed to change their address, OP logged into the site and changed their password, putting an end to the spam they were receiving from the user’s actions.
I don’t have an ethical qualm with this. He didn’t want to sign up for the service. Someone else signed his email address up for it. Legally, I can’t imagine that being prosecutable.
I think you’re misreading this. OP has an email account. Someone else signed up for some website that doesn’t verify that you own the address before allowing you to log in and use the service. If the site did verify it, the user wouldn’t have been able to log in because OP would have been getting the verification emails, and not the user.
Later, after OP told the user and they failed to change their address, OP logged into the site and changed their password, putting an end to the spam they were receiving from the user’s actions.
I don’t have an ethical qualm with this. He didn’t want to sign up for the service. Someone else signed his email address up for it. Legally, I can’t imagine that being prosecutable.