title: How to get user details using the 'alternate email' attribute in Azure AD Graph API
body: <p>I have a user in my B2C tenant that has an alternate email present. I would like to retrieve this user's details (specifically the 'signInNames' array) using the 'alternate email' property from the B2C Tenant. I believe this is also known as 'otherMails' when used by Graph API.</p>
  
  <p>I am also using the graph.windows.net URL for the API. If possible, I would like to keep using this URL. If the graph.microsoft.com has a solution for this though, I would like to know about it.</p>