Still want to block spam submissions after switching Gravity Forms to Formidable Forms? This is easy to do and it only takes 1 minute to use it for your Formidable Forms.
Google's reCAPTCHA cannot block submissions made by real humans, but our plugin BSK Forms Blacklist can block all submissions based on spam keywords. We noticed that there have been a lot of spam submissions containing Viagra keywords recently, and the following screenshot shows how our plugin blocked it.
Let's assume you already have a list of spam keywords including Viagra
Then, what you need to do is:
1 ) Open your Formidable Forms and enable Backlist on the "BSK Blacklist" tab of the form settings page.
2) Focus on the field that you'd like to validate its content against spam keyword list and you'll see the field settings on left. Just choose the blacklist name and use case-insensitive for comparison dropdown.
Now, submissions will be blocked if the text area contains any spam keyword in the list.