It is possible to reset your password to a secondary email address as long as it is verified in your account.
This means that if you have forgotten your password and no longer have access to primary email,
you can click “forgotten password” and write your secondary email address.
The reset password link is then sent to that address.
It is important to remember that this does not change your primary address so you have to change that once you are logged in.
If you have only one address verified on the account the account is lost.