It can be anything! An apex, subdomain, or even a URL.
Results for*.activedirectory.windowsazure.com.office.m365---mcafeecloud.mcafee.myshn.eu
www.*.activedirectory.windowsazure.com.office.m365---mcafeecloud.mcafee.myshn.euactivedirectory.windowsazure.com.office.m365---mcafeecloud.mcafee.myshn.euwindowsazure.com.office.m365---mcafeecloud.mcafee.myshn.eucom.office.m365---mcafeecloud.mcafee.myshn.euoffice.m365---mcafeecloud.mcafee.myshn.eum365---mcafeecloud.mcafee.myshn.eumcafee.myshn.eumyshn.eueu