Office 365 Groups are No Longer Automatic Mail Groups Until recently, if you created an office 365 group (usually by creating a Teams or a SharePoint site), you would also be able to send that group mail directly via outlook. Unfortunately, with everyone having the ability to create teams and sites on demand -- and very few people following good naming standards, it's very easy to get your corporate address books cluttered. Microsoft received a lot of feedback about this clutter and as a result, they disabled the functionality. Existing Office 365 groups are unaffected but if you create a new one, you'll find that you can't locate them in the typeahead when you want to send mail. You can however, still have your cake and eat it too. You just have to use PowerShell. Procedure Since this is an admin feature and I'm presuming that all admins should be on Multi-Factor authentication now, the instructions are for MFA. If you're not using MFA, you mig...