I wasn't suggesting that it was a technical issue at all really. It would be a difficult task, but certainly not out of reach for many people I know, so I would

I wasn't suggesting that it was a technical issue at all really. It would be a difficult task, but certainly not out of reach for many people I know, so I wouldn't suggest that it would be out of your reach either. The problem would be selling it. The issue with your second observation is that while it is true, the work is distributed, thus isn't a source of pain to the company - they entity you're trying to sell to. There are plenty of GTD tools out there, but this doesn't have anything to do with email.