Level 1 file extensions must be blocked and not removed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-71161	DTOO244	SV-85785r1_rule		Medium

Description
Malicious code is often spread through e-mail. Some viruses have the ability to send copies of themselves to other people in the victim's Address Book or Contacts list, and such potentially harmful files can affect the computers of unwary recipients.

STIG	Date
Microsoft Outlook 2016 STIG	2016-12-02

Details

Check Text ( None )
None

Fix Text (F-46876r2_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security -> Security Form Settings -> Attachment Security "Remove file extensions blocked as Level 1" to "Disabled".