Microsoft officials shared information about which features are and are not supported with the Outlook RT preview in an Outlook IT Pro blog post on June 27.
The Outlook RT app is a live tile application with "most of the familiar look and feature functionality found in the enterprise version of Outlook," Microsoft officials said. Outlook 2013 RT can connect to Exchange Server 2007, 2010 or 2013, as long as Autodiscover is configured, officials confirmed.
No support for Online Archive or Personal Archive mailboxes
No ability to apply Messaging Records Management (MRM) retention policies
No Site Mailboxes
No support for Data Loss Prevention (DLP) policy tips
No Visual Basic for Applications (VBA) and COM Add-in support, no support for macros, add-ins or other custom programs (This is the same limitation that's imposed on all applications that are part of Office Home & Student 2013, which is installed as part of Windows RT and the RT 8.1 preview.)
No ability to set information rights management (IRM) on new email messages
No integration between Outlook 2013 RT and Lync (or any other of the Office Home & Student 2013 apps, for that matter
No integration with SharePoint, as the Outlook Contact Card does not display an active link to users' SharePoint My Site pages
No ability to add a fax account to Outlook 2013 RT
No ability to configure Outlook 2013 RT using Group Policy (same limitation as other Office Home & Student 2013 apps face)
"Windows RT 8 and Windows RT 8.1 Preview ship with Office Home & Student. If your organization also purchased commercial use rights or has a commercial license to Office 2013 suites that include Outlook, your users can use Outlook 2013 RT to get to business on their RT devices too."
Outlook RT runs on Microsoft's ARM-based Surface RT devices, as well as any/all other ARM-based Windows RT tablets and PCs. It is being positioned as a complement, not a replacement to, the built-in Windows Mail client on Windows 8 and Windows RT PCs. Outlook RT will function the same as Outlook 2013, in terms of how it is installed and maintained.