NeverBounce

Stop sending into the void. Before each campaign, run your contacts through NeverBounce and turn a messy list into a reliable send-ready audience. Upload a CSV or connect your email platform, start a verification job, and let the service classify every address: valid, invalid, disposable, catch‑all, duplicates, and potential spam traps. Use the results to auto-tag, segment, and suppress risky contacts, then push the cleaned list back to your ESP in one click. You get a concise report with status counts and recommendations, so you can set rules like “exclude catch‑all” or “quarantine unknowns” and move straight to launch with fewer bounces and stronger sender reputation.

Hate bad signups? Add real-time checks to every capture point—newsletter forms, lead pages, event registrations, checkout fields, and even POS terminals. Drop in a client-side script or call the API server-side to validate on blur or submit. Block misspellings with syntax checks, detect temporary mailboxes, and stop known traps before they ever reach your database. Customize on-screen messages (e.g., “Looks like a typo—did you mean…?”) and decide whether to warn, require correction, or reject. The result: fewer fake addresses, cleaner CRM data, and more accurate lifecycle automation from day one.

Developers can wire NeverBounce into existing systems in minutes. Grab an API key, pick your preferred stack (Node.js, PHP, Go, Ruby, Java, .NET), and call single-check endpoints for signups or bulk endpoints for nightly jobs. Validate in layers: quick syntax and domain/MX lookup, mail server handshake, and catch‑all detection. Handle timeouts gracefully, cache recent validations to reduce calls, and store response codes to power routing rules (e.g., send verification email only if “valid”). Use webhooks for job-complete notifications and map results back to user records for transparent auditing.

Keep data clean over time with automated syncs. Connect your ESP or CRM once, choose a schedule, and let NeverBounce recheck segments regularly so dormant or recycled accounts don’t drag down deliverability. Pair validation statuses with engagement metrics—remove hard bounces, deprioritize disposables, and review catch‑all results before big sends. Support teams can run single-address lookups when tickets bounce, while operations can deduplicate across sources and archive inactive contacts. With ongoing maintenance and routine checks, you preserve list health, protect your domain, and keep inbox placement solid release after release.