My question is a layered one,
I need to migrate an entire non-profit to office 365 with the minimum cost. I have 60 active users, plus a lot of additional mailboxes for guests or roles.
How can I opt it so that I have full licences for active users and minimum licences for non active ones?
Are there additonal costs involved for supporting two different types of licences for the same organization?
Are there additional costs for adding a DC and AD role to my office 365 subscription?