I don't seem to be receiving them - I just checked an answer and there was a comment 41 minutes ago, but no email has arrived. It was all working an hour and a half ago (email @15:37, current time 17:13) and I haven't changed any settings. I just checked and all three of the "Email Notifications" are checked in the "MySettings...Newsletters & Emails" tab of the settings page.
Looks like it may be at my ISP - I can't get any messages through...oh, joy!
If you get an email telling you that you can catch Swine Flu from tinned pork then just delete it. It's Spam.