We are in the process of connecting our internal domain with Azure AD. We have already established a tenant through the use of Office 365 and have been planning on migrating out email off of Exchange 2010 to Exchange Online. I have not yet installed AADC onto a server.
Internally our company has been using 'ourcompany.net' but externally we have the 'ourcompany.com' domain. Email is also routed using the .com name.
My concern is how do I keep both domain names and make AzureAD work? I've created a UPN for the 'ourcompany.com' name yet I can't find info on whether or not I still need to add the 'ourcompany.net' name as a tenant to AzureAD?