Defensio is an advanced spam, malicious content and profanity filtering web service that learns and adapts.
IMPORTANT: Deactivate Akismet and/or any other anti-spam plugins by going to your Plugins tab in the WordPress control panel. Simply click "deactivate" to deactivate the desired plugins.
Using multiple spam-filtering solutions will negatively impact Defensio's performance.
Note: If are upgrading from an older version of Defensio, please deactivate the old plugin before proceeding with the upgrade. Moreover, please delete the old Defensio plugin directory from your server. Not doing so could lead to version conflicts.
Copy the 'defensio-anti-spam' folder (unzipped from the file you downloaded) into 'wp-content/plugins/'. You should now have a file called 'defensio.php' in 'wp-content/plugins/defensio-anti-spam/'.
Return to the Plugins tab in your control panel and activate Defensio.
Under the Plugins tab, you will find a new tab called Defensio Configuration. Go there and enter your API key.
If the key turns green, this means it has been successfully validated. If you don't have an API key, you can obtain one for free at http://defensio.com/signup.
Under Defensio Configuration, you may also set the threshold level for "obvious spam" (this can be hidden from your spambox, at your option). We recommend you leave this "obvious spam" level at its default value (80%) until you get a feel for what a better value might be for your own purposes. You may also choose to enable automatic deletion of spam on old articles, though we do do not recommend this by default.
Note: If you're upgrading from an older version of Defensio, the API key should be pre-populated for you.