Do not check e-mail address against address of certificates being used

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

Registry

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

Value name: supressnamechecks

Enabled: supressnamechecks = 1

Disabled: supressnamechecks = 0

Description

This policy setting controls whether Outlook verifies the user's e-mail address with the address associated with the certificate used for signing. If you enable this policy setting, users can send messages signed with certificates that do not match their e-mail addresses. If you disable or do not configure this policy setting, Outlook verifies that the user's e-mail address matches the certificate being used for signing.