There was an issue with the Email Server earlier this morning. The issue was resolved and the server is now back up and running.
Please retry registering for an account when you have a chance.
If you know of customers that created an account during the period while the server was down and still did not receive their activation email, please let me know or contact us at email@example.com and we can resend the activation email. I would just need to know the email address that they registered with.