No, sorry, I think
you're missing the point. There is one Hotmail, and a million businesses that need reliable email. I don’t
want to outsource my key infra, but that’s the only viable
option for most companies.
Getting email right requires lots of infra expertise, steady financial expenses, and time. Most companies just don’t have any of these available, and it makes zero economic sense as well if a product like Microsoft 365 exists.