For those who use gmail, I did find a lot of notifications in my spam box. If go there, select all of them as not spam, it'll begin to retrain your gmail to view emails from insanejournal as not spam.
http://www.raymond.cc/blog/archives/200 8/03/07/gmail-marks-legitimate-emails-as-s pam-how-to-correct-this/
http://www.raymond.cc/blog/archives/200