Are there any resources on how to use managed open in? We have DEP and VPP set up and working great and we want to start looking into moving towards using Microsoft's Office apps and managed open in instead of content locker.
Also, going along with the above - is it possible for SEG to encrypt emails based on groups? So for users not in the DEP group they would still get encrypted attachments that will only open in content locker while DEP users would have their attachments come through straight and open in a managed copy of Excel (or whatever is needed for the content type).