Policy
Download shared non-mail folders
By default, most shared folders that users access in other mailboxes are automatically downloaded and cached in the users' local OST files when Cached Exchange Mode is enabled. Only shared Mail folders are not cached. You can use this setting to change this behavior so that non-mail folders are not downloaded automatically.
Pack Microsoft Office
Category Microsoft Outlook 2016 / Account Settings / Exchange / Cached Exchange Mode
Policy ID
097b85634071 Internal name
L_Downloadshardnonmailfolders Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\outlook\cached mode\downloadsharedfolders (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\outlook\cached mode\downloadsharedfolders (disabled) = 0Policy notes
By default, most shared folders that users access in other mailboxes are automatically downloaded and cached in the users' local OST files when Cached Exchange Mode is enabled. Only shared Mail folders are not cached. You can use this setting to change this behavior so that non-mail folders are not downloaded automatically.