Protect your signups from disposable email addresses.

Stop disposable email signups before they cost you real money. Every throwaway address in your database is a bounced campaign, an abused product trial, or a metric you can no longer trust. Our service provides a drop-in JavaScript snippet and a clean REST API to catch these addresses at the form, using fast DNS-level lookups. Your policy then decides how to handle them, allowing you to control the process.

• DNS-Level Detection: Utilizes DNS records for fast and reliable detection without probing mail servers.

• No SMTP Probing: Ensures checks are fast, polite, and safe to run on every keystroke.

• Fails Open: If any issue occurs, checks return a safe 'allow' verdict, preventing signup forms from breaking.

• Drop-in Snippet: Easily integrate a single script tag into your forms for immediate protection.

• Clean REST API: Offers a straightforward API endpoint for backend integration.

• Real-time Data: Tracks over 205,000 disposable domains, with thousands added daily, ensuring up-to-date detection.

• Customizable Policy Engine: Map signals like 'disposable', 'undeliverable', 'relay/forwarder', 'public provider', 'role account', 'spam risk', and 'masked routing' to your desired actions (allow, warn, or block).

• Privacy by Default: Logs store only the email domain by default, with an opt-in no-storage mode for enhanced privacy.

Start protecting your sender reputation and metrics today with a service that is built for developers and offers a free plan to get you started.