I'm disabling the e-mail verification check for registration as of today. E-mail verification has been a staple in spam prevention for many, many years, but with the number of disposable e-mail services available these days and the constant issues with message routing between service providers, I think it's time to find a different solution. I will be implementing more aggressive, behind-the-scene checks against spammer databases during registration for the time being. If spam and bot registration becomes a noticeable problem in the following week, I may roll this change back. I will also be making changes to the e-mail server during this time. Notification e-mails for private messages and subscriptions may not be sent out. If you notice this behavior for more than 24 hours, please reply to this thread and let me know. UPDATE 12/25/2016 : Read below I will be reactivating e-mail verification sometime in the next couple of weeks. The plan is to send e-mails out through a bulk mailing service rather than locally to bypass issues with e-mail routing. If you registered or updated your e-mail to a non-existent address, you'll want to update your contact information to a valid one, even if it's through an anonymous e-mail provider like Mailinator. What does this mean? It means if you registered under email@example.com for your e-mail, update it to valid e-mail address you have access to or use Mailinator if you're not comfortable with a personal e-mail address being used for notification purposes on Undertow. Why are you verifying e-mail addresses again? While skipping e-mail verification has worked around the issues with registration confirmation, it has inadvertently impacted the delivery rate of e-mails to a lot of other major e-mail providers that were previously working without issue. TL;DR? Update your contact e-mail to a valid e-mail or to a Mailinator address before 01/14/2016 or you may lose access to your account. The only staff member that can unlock accounts is me and I'm slow as fuck, so seriously, get this done. Subnote: If you don't know how Mailinator works, it's a throwaway e-mail service. You can set your contact e-mail to DetritusSucksToes@mailinator.com, then go to mailinator.com, put in DetritusSucksToes at the top and it'll show you any e-mails that were sent to that address. No registration and no password necessary. Obviously this is not a secure e-mail service, but it is anonymous. Read the FAQ on their site if you want to know more.