Put this on the form you already have.

Your site stays yours. Change action. We store the fields. You read them in the dashboard.

<form action="https://smote.sh/f/your-id" method="POST">

Sign up. You get https://smote.sh/f/ab12cd34.
Set that as the form action on your Hugo / Astro / Pages site.
Replies show up in the inbox. Optional webhook if you want the same row on your server.

Try a post

Same request your site will send. Not a page you hand to customers.

One action URL, 50 replies a month, email when something arrives, 14 days in the dashboard.

20 URLs, 2,000 replies, optional signed webhook, 30 days kept.