I'm not sure if this is a bug or I'm doing something wrong. Accidentally I've misconfigured for few minutes my email on my host. After quickly fix the issue, I saw here in Xenforo Community the message: Attempts to send emails to my@email have failed. Please update your email. Questions: If the email is working properly again, the message disappear automatically? Because I've been waiting about 1 hour and the notice was still there. I went to my contact details, I've changed my email, the system sent me the email to confirm the new account, but after click in the confirmation link it show me this: Xenforo Community - Error Your account could not be confirmed. After try again with my old email my account is confirmed here again. but now I'm facing the same problem in other boards where I'm member. Attempts to send emails to my@email have failed. Please update your email. and I can not confirm my email in some boards now. I'm seeing: xxx - Error Your account could not be confirmed. Seems a little tricky fix the problem when the emails are bouncing. any Idea? or what is the quickly way to solve this issue when this happen? . . Edit: You will see the problem if you want to use the first email (the email that was bouncing) is weird, I'm seeing this in other boards too.