Verify millions of emails per hour with 99.6% accuracy. SMTP probing, catch-all detection, risk scoring — all behind a single API.
Every signal a deliverability team needs — wired into one consistent API and dashboard.
Real handshake with the mail server. No pinging — confirmed mailbox existence.
Identify accept-all domains and split them from confirmed mailboxes for safer sending.
Cross-reference 4.2M known disposable domains and active spam-trap signatures.
Drop a 10M-row CSV. We chunk, dedupe, and verify in parallel — clean file back in minutes.
Verify a signup before the form submits. 280ms p95, edge-deployed in 14 regions.
0–100 risk score per address, blending mailbox, domain reputation, and behavioral signals.
Bare-metal SMTP probes, connection pooling, and intelligent retry. We push deliverability infrastructure to physical limits so you don't have to.
CSV, API, or sync from Salesforce, HubSpot, Klaviyo. We dedupe and normalize on ingest.
Multi-stage pipeline: syntax → MX → SMTP → catch-all → reputation. ~5s per 10k rows.
Download a clean list — or sync verified contacts back to your CRM in one click.
A control plane built for deliverability engineers, not marketing dashboards.
Every plan includes all verification checks. You only pay for valid lookups — invalid syntax is free.
Verify your first 100 emails free. Set up takes 90 seconds. No credit card.