I have a client with their domain (which is an .org) being used with Office 365 and they have 5 users with their emails defined.
What they have found is that a number of people send in donations, they don't end it with .org, but .com.
Is the solution, to purchase another domain with the same name, but that ends in .com. Then add that to the existing 365 account (I understand it can have up to 900 domains).
Then the question is, do I need 5 more mailboxes (which each mailbox increased the monthly charge, or can I make the other domain as aliases so I don't increase my monthly payments?