We receive a lot of email that bounces back from the automatic vBulletin mailer due to the email recipient no longer having a valid email address. To cut down on this, I deleted the email address from any registered user whose email generated a bounce back email. Mostly this affected users who registered a long time ago and never posted, but there are some active users affected by this. If you're one of them, please go to Settings -> Edit Email & Password and enter a current email address. I suspect an email address change will likely require you to click a link in an email sent to that address, but I don't know that for sure. If you were unaffected by this and know you have an email address that you registered with that's no longer functional, please be proactive and update it accordingly.

Please let me know if you run into any issues or have questions.