Login with UPN name in windows 2008 server R2

Question

Is it possible to login with same username but different suffix in windows 2008 R2?

Example: user1 with username abc@xyz.com abd user2 with username abc@gmail.com log in simultaneously using RDP.

Note: Username is same, only suffix part is different.

Any help appreciated.

Answer 1

Yes if you set their AD UPNs to be abc@xyz.com and abc@gmail.com, respectively, it will work fine. Contrary to Michael's comment, you don't need to register any UPN suffix values for this to work.