If you build static sites, you've used one of these: Formspree, Netlify Forms, Basin, Getform, Web3Forms, staticforms.dev. Paste a URL into a form's action, the service catches the POST and emails you the result. For a single contact form, this is genuinely the right tool — zero backend, minutes to set up, free at low volume.

It stops being the right tool the moment the site grows up.

Where the wall is

The limits aren't bugs, they're structural — a generic catch-all can't do form-specific things:

Submission caps. Free tiers commonly sit around 50–250/month.