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Outlook policy template deploys DisableCrossAccountCopy as REG_EXPAND_SZ instead of REG_MULTI_SZ

An Active Directory administrator deploys the Microsoft Outlook 2010 or Microsoft Outlook 2013 policy Prevent copying or moving items between accounts. However, although the policy is applied to Microsoft Windows workstations, Outlook does not restrict users from copying or moving organization email messages to an Outlook Data (.pst) file or other email account.
The Outlook 2010 and Outlook 2013 Administrative Template files (ADM/ADMX/ADML) set the DisableCrossAccountCopy registry value by using the REG_EXPAND_SZ (expandable data string) data type. However, the DisableCrossAccountCopy registry value must be a REG_MULTI_SZ (multiple string) data type.

The organization's AD administrator can use the following information to deploy the DisableCrossAccountCopy registry value by using Group Policy:

Action: Replace
Key Path: Software\Policies\Microsoft\Office\14.0\Outlook
Value name: DisableCrossAccountCopy
Value type: REG_MULTI_SZ

Set Value data to one of the following three strings:

  1. An asterisk (*) will restrict copying or moving messages out of any account or Outlook data file (.pst).

  2. Domain name of email account to be restricted. You can specify the domain of the accounts that you want to restrict. For example,

  3. SharePoint This string will restrict copying or moving data out of all SharePoint lists.

In Windows Server 2008 and Windows Server 2012 environments, you can use the Group Policy Registry preference extension to deploy registry settings. For more information about how to use the Registry preference extension to deploy the DisableCrossAccountCopy registry value, visit the following Microsoft TechNet website:

Note In a Windows Server 2003 environment, the registry change can be distributed by using a logon script. For more information about using a logon script to deploy a registry setting, click the following article number to view the article in the Microsoft Knowledge Base:

310516 How to add, modify, or delete registry subkeys and values by using a registration entries (.reg) file

For more information about the DisableCrossAccountCopy setting, visit the following Microsoft TechNet website: 

Important If you are an Outlook user and are experiencing the behavior that is mentioned in the "Symptoms" section, contact the administrator for your organization. Any change that you make to the Policies hive of the registry will be overwritten by the organization's policy settings. Therefore, you must contact your administrator to have the necessary changes applied.


Article ID: 2479719 - Last Review: 01/14/2013 19:38:00 - Revision: 6.0

Microsoft Outlook 2010, Microsoft Outlook 2013

  • KB2479719