As some of you probably noticed the server SA is hosted on went down for a couple of hours earlier today. Everything should be back up and working now but for a while the email system wasn't working. This would mean that you may have have received comment notifications from posts you are subscribed to.

I apologize for the inconvenience. If there was a discussion you were following you should check the post for new comments. All subscriptions should now work properly and you shouldn't have to re-subscribe to any posts.

Again, sorry for the inconvenience.