Before we wanted to de-migrate from Expand back to Plesk because Expand only supports Plesk 9.x. We were warned that this is not supported because: 1. Although you can de-migrate Linux mail servers (and content?) you cannot de-migrate Windows mail servers. 2. You cannot de-migrate DNS. With PPA we have some hope that we will be able to upgrade our old servers. The question is, with PPA, can you migrate your DNS from Expand to PPA?