Prevent copying or moving items between accounts: registry value disablecrossaccountcopyUserHKCU\software\policies\microsoft\office\16.0\outlook

Policy ID: L_PreventCopyingOrMovingItemsBetweenAccounts
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 › Account Settings › Exchange

Registry

disablecrossaccountcopy

REG_MULTI_SZUser

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

Enabled value: Depends on the option value
Element: -
Value type: REG_MULTI_SZ
Maximum number of strings: 25
Maximum length: 100

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

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

; Value names and types follow the ADMX. Replace <enter value> below with your own data
; hex(2) and hex(7) data must be written as hexadecimal (UTF-16LE)
"disablecrossaccountcopy"=hex(7):<enter value>

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKCU\software\policies\microsoft\office\16.0\outlook" /v "disablecrossaccountcopy" /t REG_MULTI_SZ /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook' -Force | Out-Null
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook' -Name 'disablecrossaccountcopy' -PropertyType MultiString -Value '<enter value>' -Force | Out-Null