After entering the Office 365 credentials via configure for Plug-in for Office 365, unable to browse or backup Outlook and OneDrive. An error "The remote machine XXXXX is unavailable" is return after some time. Also attempt to backup by selecting the Outlook or OneDrive node will fail.
原因
Plug-in for Office 365 12.4 requires Microsoft .NET Framework 4.7.2 or later.
解决办法
Verify that Microsoft .NET Framework 4.7.2 or later is installed on the server where the plugin is installed.