go to your Preferences page, and click the "Comment Moderation" button.
The plugin requires the [[!cpan JSON]] perl module.
+The [[!cpan LWPx::ParanoidAgent]] Perl module is recommended,
+although this plugin can also fall back to [[!cpan LWP]].
You can control how content is tested via the `blogspam_options` setting.
The list of options is [here](http://blogspam.net/api/2.0/testComment.html#options).