https://techcommunity.microsoft.com/discussions/windows10space/mail-app-identified-microsoft-related-domains-as-junk-/954240/replies/959873
Mail app identified Microsoft related domains as "junk" ! | Microsoft Community Hub
this is really strange. Email sender is engage.windows.com when you type the domain name in the browser (Windows.com), you are redirected to...
mail apprelated domainsjunk communityidentifiedmicrosoft