After activation go to Configuration -> Captcha and enable reCaptcha there. You can use Classic or google ReCaptcha.
- Classic is very simple and does not require any additional setup. However it's not 100% "bulletproof".
- Google ReCaptcha is more advanced and provides much higher level of protection. However it requires you to set up google ReCaptcha keys in your google account.
You can get the google keys from https://www.google.com/recaptcha/admin/create It is very important to set the keys correctly, otherwise, ReCaptcha will not show up in your affiliate signup form.
- Select reCAPTCHA v2 as v3 is not currently supported.
- Insert your Post Affiliate Pro account domain where you will be using ReCaptcha(for example: EXAMPLE.postaffiliatepro.com)
You can also choose one of the four visual themes for your ReCaptcha. Here is a preview for each one of them.