Replies or forwards to signed/encrypted messages are signed/encrypted

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\outlook\security

Value name: nocheckonsessionsecurity

Enabled: nocheckonsessionsecurity = 1

Disabled: nocheckonsessionsecurity = 0

Description

This policy setting controls whether replies and forwards to signed/encrypted mail should also be signed/encrypted. If you enable this policy setting, signing/encryption will be turned on when replying/forwarding a signed or encrypted message, even if the user is not configured for SMIME. If you disable or do not configure this policy setting, signing/encryption is not enforced.