I must admit that I don’t completely see the point of this service as I see feeds as a replacement for e-mail but.
Let’s say you’ve got that one person that has mastered e-mail but there’s no way you’re ever going to get them to use a feed aggregator. If you can get them set up with feedmyinbox you can have them benefit from feeds but have them delivered to their inbox as e-mail.
Just enter the URL of the feed then your e-mail address and click Submit. Within minutes you’ll receive a confirmation e-mail. Once you’ve confirmed your e-mail address, you’ll receive one e-mail per day containing all of the new posts from that feed.