Store deleted items in owner's mailbox instead of delegate's mailbox: registry value delegatewastebasketstyleUserHKCU\software\policies\microsoft\office\16.0\outlook\options\general

Policy ID: L_Locationofitemsdeletedbydelegates
Scope: User Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category: Microsoft Outlook 2016 › Outlook Options › Delegates

Registry

delegatewastebasketstyle

REG_DWORDUser

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

Enabled value: 4
Disabled value: 8

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\general]

; Options (use only one)
; Enabled
"delegatewastebasketstyle"=dword:00000004
; Disabled
"delegatewastebasketstyle"=dword:00000008

CMD

:: Options (use only one)

:: Enabled
reg add "HKCU\software\policies\microsoft\office\16.0\outlook\options\general" /v "delegatewastebasketstyle" /t REG_DWORD /d 4 /f
:: Disabled
reg add "HKCU\software\policies\microsoft\office\16.0\outlook\options\general" /v "delegatewastebasketstyle" /t REG_DWORD /d 8 /f

PowerShell

# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\general' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\general' -Name 'delegatewastebasketstyle' -PropertyType DWord -Value 4 -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\general' -Name 'delegatewastebasketstyle' -PropertyType DWord -Value 8 -Force | Out-Null