I have a domain registered bsewpl.com, I want to start the domain.live.com. But cant initiate the process

After I registered bsewpl.com, I want to use domain.live.com to have outlook.com for my domain.

I am getting following error after filling here - https://domains.live.com/Signup/SignupDomain.aspx

ERROR: This domain name can't be used because it contains a protected word or inappropriate language. Please contact support if you feel this is not the case.