The built in tools are better than EV in most cases without the cost or hassle.
Clearly thats true cos, your asking about it on a forum yet it cannot do what your asking mate (thats a bit of a hassle is it not?)......I also can recover mail from as far back as 1999 (infact users themselves can, de-dup is also automatic as a feature) not to mention the "vault" being pretty much transparent to the user, freeing myself up to tackle real IT issues,
Knowing that EV is set n forget and empowers my users to look & recover themselves (for data retention laws & IP in Biomedical pharma industry) without really needing the senior infra engineer or my teams involvement for a task thats not "really" an IT task.
EV is worth every penny, freeing myself and the team to do more value added tasks for the global business.
How many man hours of investigating & actually retrieving this data/configging (and of course when the brown stuff hits the fan, shock horror not having that saved email they needed to stop a multimillion £ IP dispute/migitation case) equates to the cost of EV? (a drop in the ocean) thats how I justified it to the board of IT execs.
I dont need to tell you our game is mainly Mitigation of risk as much as providing support in the electronic workplace.