title: Office 365 - Remove domain from inaccessible tenant
body: <p>I am trying to setup a new Office 365 tenant using a domain used on a previous tenant and I get the following warning – 
  <a href="https://i.stack.imgur.com/S2hWP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/S2hWP.png" alt="enter image description here"></a></p>
  
  <p>Is there a way to remove all users and the domain from Office 365 without access to the tenant that added it? I thought of admin takeover (opening a trial to PowerBI, taking admin ownership) and then releasing the domain so that it can be registered to the new Office 365 tenant but that requires a valid email address containing the domain and I don’t have that.</p>
  
  <p>Know of a solution to this?</p>