SharePoint: Issues with Students with @u.northwestern email addresses as co-owners of SharePoint folders

If faculty or staff wish to add students as a co-owner of a SharePoint folder or site, there are additional steps that are needed.

When adding students using Google Apps (u.northwestern.edu) for email, as a SharePoint site owner, the current owner must re-add these students using their NetID instead of their student email address. 

This is not a configuration or issue, it is working as expected.