In the registration access protection, I can whitelist email domains that I allow to register. Instead, we require a blacklist to block certain email addresses (e.g. competitors, gmail/hotmail, etc.). Since we are offering webinars to our customers, we want to make sure that only customers register and not competitors or attendees with generic email addresses like Gmail, Hotmail, Yahoo, etc. Hence the blacklist would be highly appreciated.
Please let me know if this is the wrong place to submit improvement requests.