How to add a new e-mail domain to Microsoft 365 via the Admin Center

How do I add a new e-mail domain in Microsoft 365 via the Admin Center?
When you log in for the first time to https://portal.office.com you need to do 2 things. Add your domain so that you can send emails with your domain and complete the configuration of Office 365 complete.
Tip: several administrators for Office 365 have been appointed.
In this Wizard you will see the configuration for Faculty - this has no impact on the standard configuration.


Add your domain, choose TXT record.

Add the TXT record on your domain hosting and do the domain refinement.

Add your first colleagues in this wizard. Always safer that you will not only own a tenant.

Set all domain records correctly. MX for Exchange, Cname for outlook via this wizard.
Add DNS records and MX records in Office 365

Set an MX record - usually created with domain-be.mail.protection.outlook.com

Set a CName for Autodiscover from Outlook to outlook.office.com
Add a TXT Record for validation and claim the Office 365 domain is also required.

If you have done everything you can go through the wizard and come out here!

How to add an e-mail domain in PowerShell Office 365
Use this blog to install the MSOL module. Log in with PowerShell.
Connect-msolservice
Add a new domain via:
New-MsolDomain -Name 365tips2.be

In the tenant you will see the new domain. You can retrieve the TXT record via here. OR you can set the MX record to do the validation immediately.

From now on, in Office 365...
Use your e-mail domain to create new mailboxes.
Log in with your voornaam.achternaam@domeinnnaam.be
Take control of devices because you have enabled device management.
Collaborate with external and familiarise yourself with your organisation domain.
Other Exchange blogs?
Setting up Out of Office on a Office 365 Shared Mailbox
Retrieve deleted Exchange e-mails - New Exchange Portal
Set up forwarding in Office 365 | Forward e-mails
Remove Azure AD Connect and make all objects cloud managed
Automatically store sent items in your shared mailbox
Add an email alias in Office 365, Exchange or Active-Directory