Hi. thanks for the quick response. We don't want to keep visiting the control panel to see who's registered and who ever doesn't have an edu email address for us to do this manually. We want the forum to only allow the ones we want and if someone tries to register with another type of address for it not to accept it. Everyone will be receiving emails to activate their account but this filter I'm asking about is what would be necessary for us to do what we want. Is there a possible hack and maybe one that exist?