I tried to use CerberusWeb SMF login plugin, I did enter a username/password of my SMF user in cerberus login page and I still need to confirm my email with cerberus. Why? I believe if login process is being done via a third-party plugin then it should not care about email confirmation? Is it what is supposed to happen?
I see the plugin will search username/password in SMF db and returns the id number of that user from db. Now what? How will cerb3 know the email address? If they still need to enter/confirm it in cerb3 support-center then what is the purpose of login plugin, as they could create an account directly on cerb3?
I'm not sure of the nature of your inquiry. As it seems you have having an issue with the Cerberus side of the bridge/plugin. You'll need to take that up with their support.
Tho you might want to search here first, but I could only find two topics.
CerberusWeb login plugin (http://www.simplemachines.org/community/index.php?topic=44960.0)
But even [Unknown] directed to their support.
Marking this as solved as like Rumbaar has said we don't have any control over this plugin :). Hopefully the creators will be able to provide you with more assistance.