Yammer Root Folders in Mac Outlook

A few Office 365 Exchange Online users have noticed a new folder in their folder list called Yammer Root. This folder cannot be deleted and is related to new integration between Yammer and Office 365 Groups, which will be announced at Ignite later this month. It's not supposed to be visible to end users yet but is in most, if not all, Exchange Online mailboxes and can be seen if you look in the mailbox using MFCMAPI or OutlookSpy. (There are actually 4 folders - Yammer Root plus 3 subfolders: Feeds, Inbound, Outbound.)

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