We have a very long list of Banned Email Addresses under Admin CP -> Users -> Banned Email Addresses.
All of the banned e-mail addresses are in the format *@domain.com which uses the wildcard to ban any e-mails from the listed domains.
One of the entries we have in the long list is: *@mailinator.com
However, today a new user joined with an e-mail @mailinator.com and was able to validate their account.
Is this a bug? If not, then how was this user able to sign up with a banned e-mail address?