Contact form says “sent” but no email arrives?

Check whether the form submits anywhere

Inspect the opening <form> tag and its submit handler. An empty action, action="#", or JavaScript that cancels submission and only changes visible state can produce a convincing “sent” message without delivering anything.

form.addEventListener('submit', (event) => {
  event.preventDefault();
  status.textContent = 'Message sent!';
  form.reset();
});

The free inspector reports this conservative pattern as cancelled-submit-without-delivery. It suppresses the warning when the same inline source contains a visible Fetch, Axios, XMLHttpRequest, Beacon, jQuery Ajax, EmailJS, submit(), or requestSubmit() delivery path. It does not claim to analyse code in external script files.

A mailto: action is different but still fragile: it asks the visitor’s device to open an email application. It is not an in-browser delivery endpoint.

Check every value has a field name

Browsers submit successful controls by name. A visitor can type into an email input or message box that looks correct, but a missing name means that value is normally omitted from a standard form submission.

<input type="email" name="email" required>
<textarea name="message" required></textarea>

Remove placeholders without exposing secrets

Copied examples often retain values such as YOUR_ACCESS_KEY, example@example.com, or an endpoint ending in /example. Those values may allow the interface to render while preventing real routing.

Do not fix this by committing an inbox password or private API secret to frontend code. Use the form provider’s documented public form identifier, an owner-controlled backend route, or deployment-time server configuration as appropriate.

Separate endpoint acceptance from inbox receipt

An HTTP success response means the endpoint accepted or processed a request according to its own contract. It does not, by itself, prove that an email reached the owner’s inbox. Delivery can still depend on account activation, recipient confirmation, provider rules, spam filtering, or downstream mail handling.

Use synthetic data such as “Website delivery test — 2026-08-15” and ask the endpoint owner to confirm the exact message arrived. Do not use a real customer’s details for testing.

Test failure as carefully as success

A reliable form disables duplicate submits while sending, announces its status, and shows an honest retry path when the network or endpoint fails. It must not display success unconditionally after a timer or local state change.

Test required-field validation, an endpoint rejection in a non-production environment, keyboard submission, and a common phone width. Keep visible phone or email details as a fallback when the business supports them.