This is the answer!

Have you seen owl inbox?

I think this is a great answer to some of the gmail
problems, blacklisting and bounced mailes etc!

To site owners this is no different then gmail but
its BETTER because it organizes your emails
instantly so you can actually find all those you
want to click and will make members click
more for sure!

It is simply an inbox, members still have to
read mails but being more organized you
can read more in a more direct and organized
way so WAY more friendly for members!

all the best,
Tony Mathews