I've answered your original post and seen your attached screenshot. The Windows Security for QuickBooks MAPI is something to do with the Exchange PowerShell settings.
Exchange PowerShell enables you to manage your Exchange Server and Office 365 organizations from the command line. In this case, you'll need to modify its authentication methods on the MAPI virtual directory.
I encourage reaching the Microsoft Community for help modifying the settings.
Keep me posted on how it goes. I'll be around to keep helping. Take care.