Microsoft Family Personalized Email address for more than 6 Family Members

Hi,

I have a personal domain were I have 9 email addresses for my family. I recently subscribed to the Microsoft Family Plan and would like to migrate my email away from the current mail server and begin using Outlook.com.

My issues is that according to the instructions only people I share the subscription with can use this personalized email address with my connected domain.

This will cause a problem as I will have 3 family members without their email address working.

I do not need any features of the subscription for these other family members, I just need that their email address remains functional.

Is there a way to do this?