Don't forget the money they make off of the exit traffic you send to the 4free type sites.
The programs that pay you for emails collected through the remote email boxes pay a good bit less than the ones that have you send the surfer to a tour type page.
The $$ made off of the exit traffic is the reason for the difference in payouts.
Why not use Max Cash's opt in program? They don't pay you per email, instead they pay you for any sales made off of the mailers or for sales made from the inside of the 4free site they set up.
Next best thing to having your own email list.
