> Having your email and calendar on Google is not a risk as long as you sync them so if something happens to your accounts that you can move them to another pro

> Having your email and calendar on Google is not a risk as long as you sync them so if something happens to your accounts that you can move them to another provider. No, that’s not true. In the case where google shuts down your email, you will lose every email sent to that account after the shut down, and you’ll need to find everything and everyone that might send email to youraccount@gmail.com. This is why having a separate domain is super important, you could switch the MX records with minimal interruption.