Warn before permanently deleting items

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

Registry

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

Value name: warndelete

Enabled: warndelete = 1

Disabled: warndelete = 0

Description

By default, a warning message is displayed before Outlook items are permanently deleted. By disabling this setting, you can change this behavior to not display the warning message.