Do not sync in Cached Exchange mode when users click Send/Receive or F9
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\outlook\cached mode Value name: nomanualonlinesync
Enabled: nomanualonlinesync = 1
Disabled: nomanualonlinesync = 0
Description
By default, when users click Send/Receive or press F9 for Cached Exchange Mode accounts, Outlook synchronizes with the Exchange server. When this setting is enabled, clicking Send/Receive and pressing F9 do not synchronize with Exchange unless only one folder is being synchronized. Users can continue to use shift-F9 to synchronize the current folder.