DigiCert gives free certificates to Microsoft MVPs and Microsoft Employees for testing purposes and for personal use.
When ordering certificates, please use the same address information as we would find in public records for your domains and your company.
Any public domain(s) you use cannot belong to Microsoft. They should belong to you personally or belong to a different company other than Microsoft. Microsoft policy does not allow other certificate authorities to issue certificates under Microsoft domains. If you need SSL certificates under Microsoft domains, even for test labs and demos, you should apply to the Microsoft SSL Administrator for those.
Please contact us at firstname.lastname@example.org if you have any questions.