It's a service for subscribing to any RSS feed via SMTP. It's Beta right now and I haven't put any effort into formatting it (pages and emails). The based URL for the service is found here.
Substitute your feed URL. You can see I've already included in the right sidebar of the Juice blog. I include class attributes on all the HTML elements, so feel free to apply a bit of style.
Of course, to prevent it being used for SPAM, there's a confirmation email sent before you start receiving the items via email. Second, the emails are sent every hour, on the hour, at most one email per hour. So, if you blog six times in an hour or edit a blog entry a dozen times, then you can be certain your reader isn't going to get 821 bombed.