Safe Emailer works great with Generic and Gmail, how does one get the Microsoft Email Service to show up in the Service dropdown?

I've gone into Manage Web Services and managed to configure the Microsoft Mail (safe.emailer) web service and it tests and authenticates without issues. However, when I add the Emailer transformer from Hub and go to select the Email Service from the Service section I only see Generic SMTP and Gmail. Is there something special I need to enable or refresh for the transformer to see my new web service? edit - have tried this in both versions of 'Form' I have installed (2022.0, 2022.1) thanks