And the reason he hasn't made money off it in the last 5-6 years has nothing to do with the license -- it is because sending emails from an API is a very satura

And the reason he hasn't made money off it in the last 5-6 years has nothing to do with the license -- it is because sending emails from an API is a very saturated market. From custom remailer apis to built-in provide-your-own-SMTP-server options there are plenty of ways to send email from code and most of them are cheap to free.