Used to get hundreds, then they turned them off for awhile, Checked late last night. I had/deleted 15 emails. Just checked again, between 7:16 and 7:31 AM, I had 4 blank email. They have now stopped again it seems. My Email notifications have been off the whole time. "Set to off, through message center only".Those receiving blank emails, are your Email Notification Settings set to "On".
User Settings > Notifications > Email Notifications
I have never received any blank emails, since day one.