title: Is it possible to redirect to an Azure AD tenant specific login page before username is entered?
body: <p>We are developing a MVC multi tenant application that use Azure AD and OpenIdConnect for authentication. Users that do not have their own Azure AD tenant will get a user in our tenant domain. Signup and authentication works fine and we have also customized the login page for our tenant (i.e. company logo). 
  The problem is with the "landing page" for authentication. Today, all users are redirected to a page at login.microsoftonline.com similar to this one:</p>
  
  <p><img src="https://i.stack.imgur.com/4P8Yg.png" alt="enter image description here"></p>
  
  <p>I want all users to land on my domain tenant customized login page (also at login.microsoftonline.com), so that they see our logo:</p>
  
  <p><img src="https://i.stack.imgur.com/CSwcx.png" alt="enter image description here"></p>
  
  <p>If a user from another tenant (not my domain tenant) enters their e-mail, they are redirected to their company login page. That is excellent. The same happens in the generic landing page for my domain tenants and any other tenants. Which is also excellent. So, how can I get all users to land on our customized login page? Btw, all users are redirected from applications that we control, so we have full controll of the code that sends the users to Azure AD.</p>