Enable RPC encryption

This policy setting controls whether Outlook uses remote procedure call (RPC) encryption to communicate with Microsoft Exchange servers.

If you enable this policy setting, Outlook uses RPC encryption when communicating with an Exchange server. Note - RPC encryption only encrypts the data from the Outlook client computer to the Exchange server. It does not encrypt the messages themselves as they traverse the Internet.

If you disable or do not configure this policy setting, RPC encryption is still used by default. This setting allows you to override the corresponding per-profile setting.

Supported on: At least Windows 7
Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\15.0\outlook\rpc
Value Nameenablerpcencryption
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

outlk15.admx

Administrative Templates (Computers)

Administrative Templates (Users)