SageMapSageMapBuild a Lead Magnet
Email Verifier · $750+ value

Lead List Quality Auditor

Paste up to 500 emails. We check format, MX presence (DNS), role-based locals (info@, sales@), free-mailbox providers, disposable mail, and duplicates — then tell you what fraction of your list is actually worth sending to.

Runs entirely in-browser/edge — your emails never hit a third-party verifier.