> only sends codes to the primary mail One should be able to login with multiple methods. E.g. with 2FA you should always be able to connect two devices, and i

> only sends codes to the primary mail One should be able to login with multiple methods. E.g. with 2FA you should always be able to connect two devices, and if you choose to login with a third party like Google/Facebook you should be able to add a password for login as well.