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

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-223350	SRG-APP-000516	O365-OU-000005	SV-223350r961863_rule	2025-03-05	3

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

ℹ️ Check
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.

ℹ️ Check

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
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".