You have a Microsoft Exchange Online tenant that uses an email domain named @contoso.com.
You recently purchased an email domain named fabrikam.com.
You need to ensure that all the users in the tenant can receive email messages by using the @fabrikam.com email domain. The solution must ensure that the users can continue to receive email by using the @contoso.com email domain.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.