Marco, at first I can recommend 2nd page of
this thread, very good discussion there, and my replies will answer a lot of questions. You want to read this page in all cases.
But anyhow, it is good idea to spin this off into separate thread anyway, as the technology behind SureBackup provides a number of features and use cases, so it would be simply too much for a single thread.
Answering your question, yes you will need AD DC (even Global Catalog, to be precise) on the test network. We actually provide capability to create so called "Application Groups" will all dependencies, which you only need to setup once and stuff each group with backed up VMs on which the corresponding service is dependant. In case of Exchange, you will need at a minimum DNS, AD GC and actual Exchange server itself. Of course, Application Groups also give ability to define actual boot order and boot delays.
So basically when you need to recover a single item for some application (this will work for any application at all, not just some), you simply start up the Application Group to specific date (before the item was deleted), and then you will have a number of options:
1. Admin-driven restore. This will work for ANY application at all. You just connect to the application with its native management tool, and retrieve the data you need. Just to get the idea - in case of SQL Server, it is SQL Management Studio. In case of Exchange, you can use tools like ExMerge.
2. Self-user restore. This one is really powerful and works with any application with web front end, like Exchange or SharePoint (for instance). I have described this method in the above-referenced topic in
this post.
3. Enhanced. Using special application-specific wizards in Veeam Backup (variation of option 1 for most common applications like AD or Exchange, but with simple point-and-click interface). Note that this will not work the way you would probably expect from other solutions available today, it will be much better. We have determined some significant issues, complexities and limitations of all current approaches, and we are addressing those. This part is the only thing I cannot provide further details on right now (for competitive reasons, this is our secret sauce).