Domain name can’t be used because it contains a protected word or inappropriate language

I am trying to setup an email account with outlook.com for my domain kunthalgiri.com, but system is giving me error as "Domain name can't be used because it contains a protected word or inappropriate language"

I am planning to create a website for a Jain religion in my home town, and kunthalgiri is the place's name. You can search on bing about kunthalgiri and will get information for the same

Please help me to resolve this.