It can be anything! An apex, subdomain, or even a URL.
Results for*.osi.office.net.office.yj-o365-onedrive.bt.myshn.eu
www.*.osi.office.net.office.yj-o365-onedrive.bt.myshn.euosi.office.net.office.yj-o365-onedrive.bt.myshn.euoffice.net.office.yj-o365-onedrive.bt.myshn.eunet.office.yj-o365-onedrive.bt.myshn.euoffice.yj-o365-onedrive.bt.myshn.euyj-o365-onedrive.bt.myshn.eubt.myshn.eumyshn.eueu