Article ID: 2812881 - View products that this article applies to.
When you try to verify a domain in Microsoft Office 365, you receive one of the following error messages:
<Domain_Name> has already been verified for your account, or for another Microsoft Online Services account.
Can't verify the domain
<Domain Name> was already added to a different Office 365 account XXXX.onmicrosoft.com.
Sign in to that account as an admin, and remove domain <Domain Name>. Then come back here and try adding <Domain Name> to this account again
This issue may occur if the domain exists in another Office 365 organization.
Do one of the following, as appropriate for your situation:
For more info about how to troubleshoot domain verification issues in Office 365, see the following Microsoft Knowledge Base article:
(http://support.microsoft.com/kb/2515404/ )Troubleshoot domain verification issues in Office 365
Still need help? Go to the Office 365 Community