ZeroBounce

Stop guessing which addresses will land and which will bounce. With ZeroBounce, you can clean a list before sending, and you can gate every new signup in real time. Start by uploading a CSV from your CRM or email platform, map columns, and pick what you want to filter out—temporary addresses, role inboxes, duplicates, or anything flagged as risky. Run the batch, then download a results file that clearly marks each contact as deliverable, undeliverable, unknown, or accept-all. Push those labels back to your ESP to pause, suppress, or segment automatically so you don’t waste budget or sender reputation.

For campaign prep, keep your newsletter pipeline healthy with ongoing checks. Add the real-time API to your forms so obvious typos (gmial, hotnail), throwaways, and spam traps never enter your database. Use the status codes to build segments: send immediately to “valid,” warm up “unknown,” and hold “risky” for manual review. Before a major send, run a quick validation pass on the target segment to confirm mailbox availability. ZeroBounce works across major providers (Gmail, Outlook, Yahoo, Hotmail), and the deliverability breakdown helps you tailor send times or content per domain if needed.

Sales and RevOps teams can qualify prospect lists faster. Verify addresses from enrichment tools or conference scans, then separate personal mailboxes from role-based addresses like info@ or sales@. Identify accept-all domains and choose a follow-up strategy—lighter touch or alternative channels—until you confirm the mailbox. Use name enrichment when available to personalize outreach and route leads to the right owner. Combine fraud and trap indicators with engagement signals from your CRM to prioritize sequences and keep your sender score intact.

Developers can wire ZeroBounce into onboarding flows, trial signups, or invite systems with a few API calls. Trigger single checks on form submit, or hand off big lists to asynchronous bulk endpoints and pull status via webhooks. Implement retries on transient SMTP responses, set thresholds to quarantine questionable records, and log validation outcomes for audits. Schedule nightly list hygiene, dedupe on import, and auto-suppress addresses that degrade over time. With clear status categories, you can codify rules—what to send, who to exclude, and when to recheck—so your emails reach real people and your metrics stay reliable.