It can be anything! An apex, subdomain, or even a URL.
Results for*.live.net.office.testo36.qauniversaltenant1.myshn.eu
www.*.live.net.office.testo36.qauniversaltenant1.myshn.eulive.net.office.testo36.qauniversaltenant1.myshn.eunet.office.testo36.qauniversaltenant1.myshn.euoffice.testo36.qauniversaltenant1.myshn.eutesto36.qauniversaltenant1.myshn.euqauniversaltenant1.myshn.eumyshn.eueu