Check for the user's private key when the user sends an encrypted email that includes the user as a recipient

This policy setting controls whether Outlook checks for the user's private key when the user sends an encrypted email and the user is included as a recipient of the email. The user can be included as recipient either directly or as a member of a distribution list.

If you enable this policy setting, Outlook checks for the user's private key.

If you disable this policy setting, Outlook doesn't check for the user's private key.

If you don't configure this policy setting, Outlook checks for the user's private key.

Supported on: At least Windows 7

Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\16.0\outlook\security
Value Nameallowprivatekeycheck
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

outlk16.admx

Administrative Templates (Computers)

Administrative Templates (Users)