Windows user creation error due to special characters or signs

I want to create a local user in windows which the user name contains "@". Lets say this way I want to use somebody's email address and create a local windows account with his email address like "foo(at)bar.com". Is there any work around to bypass the windows error for the "@" and "." issue? I've tried this with the windows GUI and command line but still getting the same error, My Os is Windows 2008 R2.