It can be anything! An apex, subdomain, or even a URL.
Results for*.login.live.com.office.eucouncilo365proxy.eucouncileupoc.myshn.eu
www.*.login.live.com.office.eucouncilo365proxy.eucouncileupoc.myshn.eulogin.live.com.office.eucouncilo365proxy.eucouncileupoc.myshn.eulive.com.office.eucouncilo365proxy.eucouncileupoc.myshn.eucom.office.eucouncilo365proxy.eucouncileupoc.myshn.euoffice.eucouncilo365proxy.eucouncileupoc.myshn.eueucouncilo365proxy.eucouncileupoc.myshn.eueucouncileupoc.myshn.eumyshn.eueu