Outlook Security Mode must be configured to use Group Policy settings.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-71157	DTOO239	SV-85781r1_rule		Medium

Description
If users can configure security themselves, they might choose levels of security that leave their computers vulnerable to attack. By default, Outlook users can configure security for themselves, and Outlook ignores any security-related settings that are configured in Group Policy.

STIG	Date
Microsoft Outlook 2016 STIG	2016-12-02

Details

Check Text ( None )
None

Fix Text (F-46834r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Security Form Settings "Outlook Security Mode" to "Enabled (Use Outlook Security Group Policy)".