Envilope uses blockchain to create immutable records of what you send online, to who, and when. Ensure only its intended recipient can open your Envilope, and only under your customized terms and conditions.
So what is the difference these days? Any email records what I've sent on line and to whom. Not a blokchain of course, but better than nothing. What's the privilege of envelope?
Looks like with this, you can track and actually see not just who your email goes to but who it's forwarded to. Like if you send a confidential email to someone and then they share it and you don't like who it's shared to, you can see that, and then vaporize or destroy it somehow so you get rid of the whole thing.