Why am I not getting the Q & A via my email anymore?

I used to get the Q&A via email every day until one day a "friend" filled up my email box and part of my mail was sent back due to my box being full. Now no matter what I do, I cannot get the Q&A email to start back up..anyone have any suggestions? 248/184.5/?

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.