Office 365 Cant Verify Domain Name Add. Enable DKIM for each domain in Office 365 portal. In my case I would normally use battlestarlocal for the domain name.
DomainName has already been verified for your account or for another Microsoft Online Services account. And for Office 365 you can set in OWA client and Outlook. We can click on Add domain.
Or you can share the domain with us and we can check it for you.
Do you have a shiny new Office 365 tenant and not sure what to do next with with it. Cancel the verification in Microsoft 365 and return later to attempt verification. Cant verify the domain. Add the domain to the tenant where it should be used.