Recaptcha

To protect your site from spam and bots, it is necessary to set up your site's recaptcha.

Go to the Google developer console: https://www.google.com/recaptcha/admin/create

Click the + (plus) icon on the top right of the page.

Instructions

1. Enter a label name, eg. MySite
2. Select reCaptcha v2 and "I'm not a robot" tickbox
3. Add your site's domain
4. Accept the reCaptcha Terms of Service
5. Click the Submit button.
6. Now copy the site key and secret key then paste it in your zender system settings. You're done!