On 11/5/2012, the Office engineering team released updated Office 2013 Administrative Templates and Office Customization Tool (OCT) files which administrators can download here: Office 2013 Administrative Template files (ADMX/ADML) and Office Customization Tool. Included in this download is an Excel spreadsheet (office2013grouppolicyandoctsettings.xlsx) that lists the Group Policy and OCT settings. The policy settings apply to both Windows Installer-based (MSI) and Click-to-Run Office 2013 Preview installations.
To learn about new settings related to Office 2013 Add-ins management, Apps for Office, escrow keys, Office Start, Office templates and backgrounds, One Note synchronization, Outlook, service level options for Office online features, sign-in, subscription activation, and Telemetry Dashboard, see Office 2013 Administrative Template files (ADMX, ADML) and Office Customization Tool.
For more information about Outlook settings, see Plan feature customizations in Outlook 2013.