How can I prevent spam?

You can prevent automated spam by adding a Captcha Field to your form. You have a few options to choose from so feel free to check them out below.

Complete guide: How-to-Add-a-Captcha-Field

Just keep in mind, this won't prevent manual spam where an actual person is spamming your form. If you want to prevent these people from submitting your form multiple times, you may also consider enabling Unique Submissions.

Related guide: How-to-Set-Unique-Submissions-on-a-Form