How can use the smtp.gmail.com to send responses

how can use the smtp.gmail.com to send responses? When I attempt to setup the email accounts they fail. I see a security warning but it does not allow me to accept.

Gmail has stricter rules for their SMTP. Please follow this guide, it would help https://www.jotform.com/help/392-how-to-use-your-gmail-account-as-your-email-sender-via-smtp. When you get security emails, make sure to allow them.