Ban Hammer pulls from the list of blacklisted emails from the Comment Blacklist feature native to WordPress.
With this plugin the blacklist need to be updated only in one place.
When a blacklisted user attempts to register, they get a customizable message that they cannot register.
In addition, Ban Hammer has built in support for StopForumSpam.com which can be turned on or off as desired.
Unpack and upload it to the /wp-content/plugins/ directory.
Activate the plugin through the 'Plugins' menu in WordPress.
· WordPress 3.4 or higher
What's New in This Release: [ read full changelog ]
· Fixed translation bug.
· Dropping support for older versions.