The new version 3.3.3 of SharxX Office 2 SharePoint now supports ADFS authentication and therefore single-sign-on far beyond the boundaries of the individual enterprise is possible. E.g. an authentication from a local active directory user in Office 365 will be now possible without providing additional user and password data.
Through this software parameters ADFS for Office 2 SharePoint over e.g. software deployement can be configured:
<!-- Optional. One or more ADFS Realms speparated by ';'. -->
<web.security.authentication.providers.adfs.realms Overwrite="True" Value=""/>
<!-- Optional. One or more ADFS servers for authenticating the user separated by ';'. -->
<web.security.authentication.providers.adfs.servers Overwrite="True" Value=""/>
A good guide for ADFS and the possibilities you can find here - http://summit7systems.com/claims-based-authentication-adfs-3-0-and-sharepoint-2013-beginners-guide/
If you have additional questions for ADFS you can reach us over firstname.lastname@example.org (also if you have questions about installing and configuration ADFS or implement your own ADFS provider)