I tested the follow blog on our blog and received no confirmation email. I've tried 2 different email addresses and checked the spam folders too.
Our blog is normally set to private, but I made it public so that I could test the follow functionality. I'm not sure if this has anything to do with it. http://hslref.wordpress.com/
Other people seemed to have the same problem:
The blog I need help with is hslref.wordpress.com.