Limiting Spam Emails from Contact Form Webhooks

The community member who created a new website with a contact form has received spam emails and is looking for recommendations to limit this. The comments discuss the use of Turnstile, a service that provides server-side validation to prevent spam, but the community members are facing issues with accessing their Turnstile account and integrating it properly. They suggest that server-side validation is required to prevent spam, and one community member shares a link to Cloudflare's documentation on Turnstile server-side validation. However, there is no explicitly marked answer in the comments.