How to limit reCAPTCHA to some forms and not others

Where can we see the website in question?

I have 2 forms on this page where I want to use reCAPTCHA:

https://ismailidigest.org/contact-suggest-a-link/

I have other private pages with forms where I do not want to use reCAPTCHA because reCAPTCHA always rejects them and says they are spam.

• This reply was modified 2 years, 10 months ago by NanoWisdoms.

Which versions of WordPress and the Contact Form 7 plugin do you use on the site?

Contact Form 7 v5.1.1
Wordpress v4.9.6

Is there any reason to use such outdated versions?

I have not had time to upgrade the website as there is a lot of custom code and plugin modifications I have to test when I upgrade. I hope to do it this year.