It's a scam I think, you have to pay to join and everyone that joins pays half of their joining fee back into an upline to pay the people for reading the emails then for you to earn money reading emails you will need to invite 5 friends or something like that it's just a matrix system.
There is nothing passive about reading emails. I earn passive income by passing out on the grass, not by reading emails.
I have joined the get paid reading emails from worldir and i will let you know how it goes a took a look at there site and decided may as well give it a try
Still Reading Commercial Emails For Free? Receive Emails On Topics That Interests You And Get Paid For It! Get $10 Just to signup! This is the one i use HERE!