Email carries no cost for the sender but is very costly to the recipient because it might be a waste of time.
Have an email client app (on smartphones, tablets or the web), that helps you get rid of time wasting emails quickly by:
1. Telling you how long the email is.
2. Estimating how long will it take to read it, taking into consideration external links that you might have to visit.
3. Showing how many users considered the email or the sender as irrelevant or spam.
4. Based on all these factors, plus your previous behavior, and some text analysis, show you a recommendation of either “delete” or “read.”