Just upgraded from 6.1.0.3 to 6.2.0. All is well but I've noticed that suddenly my UBB is allowing registrations from domains that are listed in the ban list. For instance, I've banned hotmail.com and in the past it's always not allowed registrations; however, this morning I had two hotmail registrations waiting in my queue.
I posted what I've done to try to isolate the problem over there. Both normal and reverse email bans for both user and host are not functioning. Other email checks like duplicate email and incorrect format email work during registration.