A simple solution would be to allow any domain to sign up and show he email extension like company.com or helloworld.co.uk etc…… I remember seeing this app when

A simple solution would be to allow any domain to sign up and show he email extension like company.com or helloworld.co.uk etc…… I remember seeing this app when I had searched for the Saas Pass Authenticator & Password Manager in the past. (worked on the 2FA design of the saas pass browser extension). I naturally assumed it was an official Microsoft extension.