Files dragged from an Outlook e-mail to the file system must be created in ANSI format.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223350	O365-OU-000005	SV-223350r961863_rule		Medium

Description

This policy setting controls whether e-mail messages dragged from Outlook to the file system are saved in Unicode or ANSI format.

STIG	Date
Microsoft Office 365 ProPlus Security Technical Implementation Guide	2025-03-05

Details

Check Text (C-25023r442269_chk)

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Outlook Options >> Other >> Advanced >> Use Unicode format when dragging e-mail message to file system is set to "Disabled".

Use the Windows Registry to navigate to the following key:

HKCU\software\policies\microsoft\office\16.0\outlook\options\general

If the value for msgformat is set to REG_DWORD = 0, this is not a finding.

Fix Text (F-25011r442270_fix)

Set the policy value for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Outlook Options >> Other >> Advanced >> Use Unicode format when dragging e-mail message to file system to "Disabled".