Can you prevent new users from registering with a certain email extension in Joomla? Or is there an extension available that will allow you to do this? I have a forum in my site which is being pounded by spammers from the same email addresses (@goodgrants.info) . I would like to be able to prevent users from being able to register with this email extension if possible, to save me about 10 minutes a day clearing spam posts. I can ban by email through my forum, but as the forum is bridged into my joomla site, the joomla registration features override the forum registration features. Wondering if Joomla has a similar "ban by email" feature that I'm not seeing.