It's been planned for a while now - sun.com email addresses are no longer accepted and no longer forwarded to oracle.com. So check you contacts and update old Sun email addresses.
While this will probably cut down the spam for a number of us you may need the new stable email address - most Oracle email addresses use the same
first.last @ oracle.com pattern (but there are a few homonyms in a company with 100k+ employees).
If you need to contact us (TheAquarium), the email address is in the "Contact Us" section on the blog.