Question

Your organization recently purchased a new domain name, contoso-sales.com, and wants users to sign in and send email using addresses at this domain. As the Microsoft 365 administrator, where and how do you make this custom domain usable across Microsoft 365 services?

Accepted Answer

Add the domain in the Microsoft 365 admin center and verify ownership by publishing the provided TXT record in the domain's DNS.

Answer

Create the domain as a mail-enabled distribution group in the Exchange admin center.

Answer

Register the domain as an enterprise application in Microsoft Entra ID and grant it admin consent.

Answer

Add the domain as a new SharePoint site collection in the SharePoint admin center.