Formspree works hard to prevent spam, but it's one of the realities of an open form on the Internet. Here's how you can help prevent spam on your forms.
reCAPTCHA is the single most effective method for preventing spam on your form. Due to its presence across the web, the vast majority of users don't have to do anything besides click a checkbox. While Gold and Platinum users can disable it, we don't suggest that if you believe your form may receive spam.
Mark submissions as spam
Formspree is currently developing a project to use artificial intelligence to scan submissions and automatically mark them as spam. How can you help us? If you receive a submission that is spam, mark it as such! Gold and platinum users can do this from the dashboard, while all users have the ability to click the link at the bottom of the submission emails. The more information we have, the better we can tailor our spam filter to your needs.
Use hidden emails
Formspree gold and platinum users have the option to replace their email with a unique hash in the action attribute. This prevents your email from being scraped by bots who then may target your form.