Blog Post
Getting Started with the New Purview eDiscovery (E3)
Another thing that I noticed was the the original (great) way of including all exported messages in one PST seems to be gone. In the old Purview, you could Export to one PST and each user would have their own folder in the PST file, with all of their messages in it. In the new Purview's Export, you can tell it to export to one PST file, but there's no organization inside: all the messages are mixed up in one mailbox. If you choose the option to "Organize data from different locations into separate folders or PSTs", the export contains one PST file for each user...potentially hundreds. There no longer seems to be any way to have one PST with all the messages, but properly organized by user, and it went from presenting the data in a very organized way to just creating a bit of a mess.