I wanted to use outlook.com for email services for my domain and the process has been completely confusing despite having read 6-7 articles about it.

I added the domain to outlook.com (I'll call it mydomain.com).
I created a new microsoft account in my domain, like *** Email address is removed for privacy ***.
I got to the page where it said my email address has not been verified. It showed *** Email address is removed for privacy *** as the primary alias.
There was no way I could find to verify my primary alias email address.
I created a new primary alias using @outlook.com. This one I could use.

I noticed it said it said I'd no longer be able to use the old primary alias. What? So the msft account I created as the admin account is dead?