Cached Exchange low bandwidth threshold
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\outlook\rpc Options
slowbitrate decimal
- range ?-1000000 Description
Specifies the bit rate threshold value. If the bit rate of the active network connection is below this value, Outlook identifies the network connection as a "slow" connection and operates accordingly (for example, downloading headers instead of full messages).