I would love to have something better than email, but how do we get there? How do we get everyone to adopt a new system? The biggest thing I would like to see i

I would love to have something better than email, but how do we get there? How do we get everyone to adopt a new system? The biggest thing I would like to see is a system with pre authorized sending. Not sure if your system does this but the ideal situation for me is that I should only ever be able to receive mail from someone I have pre approved. But you need a simple way to do this pre approval process, perhaps it goes to a special folder in the client the first time you receive from a new sender, and then you can approve the sender for all future mail so it goes into the main inbox? If I’m talking to my doctor on the phone and they ask for my email I need an easy way to preapprove them, it can’t be some complex system where I must give them a 64 character alphanumeric random string. Also I think the only way a system like this will succeed is if it is somehow backwards compatible with email, there is just too much momentum with email as is, to be able to successfully migrate everyone off it and without some sort of delay email fallback system.