A few of you have changed your e-mail address since you registered. If you are subscribing at all, then you will not receive any e-mail notifications, and I receive a 'could not deliver' e-mail. If you are not subscribing, then I will not be alerted, unless someone tries to send you a personal e-mail.
Please check your Profile to confirm it is showing your current e-mail address.
Go to 'Forum' and select Profile at top of left hand menu. That will open your Profile, which can then be changed if necessary. Don't forget to SUBMIT before exiting that screen.