⚡ Deep SMTP Verification Engine

B2B Cold Outreach & SDR Lead Verifier

Clean outbound lead lists from Apollo, ZoomInfo, and LinkedIn to keep bounce rates under 1% and scale sales meetings.

100 Free Credits Zero Message Delivery 99%+ Accuracy

Why Accurate Deliverability & List Hygiene Matter

Outbound SDR teams face a relentless battle against domain burn. Scraped lead lists from popular B2B databases typically contain 15% to 30% invalid, outdated, or catch-all addresses. Launching cold sequences via Smartlead, Instantly, or Outreach with unverified data triggers Google and Microsoft automated spam detection, instantly burning your secondary domains and landing critical client pitches in the junk folder. Our B2B email verifier rigorously scrubs outbound lists, performing real-time SMTP handshakes to ensure you only contact verified prospects.

🛡️ Key Verification Capabilities

  • Guarantees cold outbound bounce rates stay below 1% to prevent domain burning and blacklists
  • Advanced catch-all identification that scores risky corporate leads before sending
  • Fast bulk CSV processing designed to clean exports from Apollo, ZoomInfo, and Clay
🔒 100% Privacy & Zero Data Retention We never store, log, or resell your verified email addresses. Every SMTP handshake is simulated directly in memory and immediately discarded.

Need to clean an entire email list?

Upload CSV or TXT lead lists and verify thousands of inboxes in parallel. Protect your sender reputation and scale outreach safely.

Start Free with 100 Credits ➔