Think you have a virtual assistant (VA) at other part of the world and some important email arrives when you were sleeping that was needed to be forwarded to your VA. You wake up in the morning and says "Holy crap, why I cannot automate forwarding my emails?".
This is where Share Your Mail comes in to play. It provides you an opportunity to share specific emails with specific people without sharing your whole inbox.
A simple services that will be a great addon for your email inbox.