It can be anything! An apex, subdomain, or even a URL.
Results formsg.teams.microsoft.com.office.uxtenant.mcafee.myshn.eu
www.msg.teams.microsoft.com.office.uxtenant.mcafee.myshn.euteams.microsoft.com.office.uxtenant.mcafee.myshn.eumicrosoft.com.office.uxtenant.mcafee.myshn.eucom.office.uxtenant.mcafee.myshn.euoffice.uxtenant.mcafee.myshn.euuxtenant.mcafee.myshn.eumcafee.myshn.eumyshn.eueu