Each service has different country and language availability, as outlined below:

  • Service offering
  • Languages (service-specific UI, documentation, support)
  • Countries and regions

Check it out here: http://products.office.com/en-us/business/international-availability

All Microsoft Online Services are unavailable in

  1. Cuba,
  2. Iran,
  3. Democratic People’s Republic of Korea,
  4. Sudan,
  5. Syria.