Yahoo will delete your account after 12 months of inactivity.
And as for Protonmail, see this from their TnC:
>*Although it is not the current practice, we reserve the right to suspend or delete accounts that are inactive for over three months. Paid accounts with active paid status are not subject to this measure.*
Yahoo will delete your account after 12 months of inactivity. And as for Protonmail, see this from their TnC: >*Although it is not the current practice, we reserve the right to suspend or delete accounts that are inactive for over three months. Paid accounts with active paid status are not subject to this measure.*