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Stop bad signups at the door

One script tag on any form. Typos, fake domains and throwaway inboxes are caught while the visitor is still typing.

  • Catches typos like gmial.com and hotmial.com, and suggests the fix
  • Blocks disposable inboxes from thousands of providers
  • Rejects dead domains with no mail server
  • Works with any HTML form, with no backend changes
Get the snippet →
[email protected]Disposable
Please use a permanent email address.
[email protected]Looks good

Install

<script src="https://mailexchange.com/widget.js" data-key="mx_pub_xxxxxxxx" defer></script>

The widget finds every input[type=email] on the page and checks it as the visitor finishes typing. It uses a public key that can only verify, so it's safe to put in your HTML.

The widget is in early access alongside the API. Ask for access.