I have a seperate test AD domain, not included in our production forest.
The server is not registered in DNS (accessing it by ip-address).
When i try to get a new security context by running RUNAS from CMD on a production PC, i get error:
runas /user:email@example.com cmd
1326: Logon failure: unknown user name or bad password.
How do i logon impersonate this remote AD user in (other domain) ?