Great, this solution obviously addressing a burning need. May I ask, were previous solutions free and work on nearly all email clients? I don't really see any

Great, this solution obviously addressing a burning need. May I ask, were previous solutions free and work on nearly all email clients? I don't really see any major race happening. The best information grabbing tool already works great - people's eyes. The purpose of this tool is just to make forwarding a little harder, and add auditing and watermarking for environments where this added information can be acted on.