Geraldlzc I don't believe so.
This StopForumSpam extension queries the StopForumSpam database for users who have posted spam in the past. It will check their username, ip address, email and if enough people have reported it, block them from registering.
This extension (I believe) uses a preset list of domains to known disposable email generators and prevents users from registering with those email addresses.
There are some domains on StopForumSpam that are universally rejected which acts like the disposable email extension.
I would think I can create a disposable email and potentially register fine on a forum with StopForumSpam extension, or be a known spammer with a gmail email address and register for a forum with the disposable email extension.
Similar functions but different methods of addressing spammers.
