I bought it before 2011, technically if you lost access to the email you might have lost access to that account years ago without knowing. Even if Microsoft was doing what I think they should, i.e. keep a database of emails and allow people to migrate their account forever, you would still not be able to recover it. Wanting to get an account back from an email you lost access to is like expecting steam to give you all of the keys on your account to add to another if you forgot your password and can’t prove it is you.
I bought it before 2011, technically if you lost access to the email you might have lost access to that account years ago without knowing. Even if Microsoft was doing what I think they should, i.e. keep a database of emails and allow people to migrate their account forever, you would still not be able to recover it. Wanting to get an account back from an email you lost access to is like expecting steam to give you all of the keys on your account to add to another if you forgot your password and can’t prove it is you.