Allow a set of users to blog to their own page only via email

I’m trying to build a functional website for my client. They would like each of their employees to have their own Blog page that they could post to via email. I’ve created the site and add a page for each user … but how do I proceed from here?

I have tried to look at Post By Email but that seems to only post to a single site. Ideally I would like to have the users email their blog updates to a single email address, and based on where the email came from, it would be posted to the appropriate users Blog page (there would have to be some sort of mapping tool email address -> blog website).

I know this sounds like a real noob question, but any pointers or suggestions would be greatly appreciated

Thanks

Anant