Oh, WELL THEN, the answer is that LJ is having problems because a third-party vendor has listed LiveJournal as a spam site, so a lot of email providers are blocking email from LiveJournal as spam (even before it can hit users' email / spam). Support really can't do anything for you.

If you're feeling adventurous, you can try using a different email address if you like - I use gmail, and I'm still getting all my notifications.