What do you mean deleting the profile off the server? On the PC, I even tried removing the user account, folders, profilelist name, etc, rebooting, and than adding it back in. Still the same result. I logged in as another user, and outlook works fine, so its something with this user directly I guess, and since I did a remove and re-add, are you thinking its the AD user profile (delete the user entirely, they are new so it wont hurt anything), or the Exchange profile (Exchange 2016 at the moment).