This plugin validates every registration against stopforumspam, fassim, internal domains, e-mails and IP blacklist.

The five validations can be enabled or disabled, and, to save external resources, the plugin validates the registration in the order below:

1. Check IP against IP blacklist cache. (Cache expires once a week).
2. If negative, check e-mail domain against domain blacklist.
3. If negative, check e-mail against e-mail blacklist.
4. If negative, check e-mail and IP against stopforumspam.com

Features

• Four validations can be enabled or disabled.
• The plugin always checks the HTTP Status of stopforumspam.com and fassim.com. If the service is down, the plugin ignores the service and validates the user.
• Optionally, the plugin can send, by e-mail, notifications about the blocked spammer.
• If the user has a StopForumSpam API Key (Optional), the plugin can notify stopforumspam about the spammer.
• The plugin doesn't extend the registration form, so must be compatible with every profile plugin. (Tested with Profile Manager).

Requirements

• API Key from http://www.stopforumspam.com/ (Optional)
• PHP CURL function enabled. If you use a shared host, check with your host admin.
• ELGG "daily" cron must be running.

Installation

• Optionally gets a stopforumspam.com API Key.
• Modify and save the settings.
• Done.

Final notes:

• If you like it, recommend it! Recommending, you don´t help me: you help the community, showing the best rated plugins and saving hours for new users.

Thanks:

• Thanks to @RayJ for developing the original version of this