ListSweep
Verify a million emails for $79, not $3,199
What it does
ListSweep checks an email list before you send it: syntax, MX, live SMTP, catch-all, disposable, role and spam-trap detection, with a 0-100 score per address. $79 covers a million verifications a month. A free Windows app runs the same engine offline.
Verify and clean email lists in bulk. 10 checks - syntax, MX, SMTP, disposable, spam-trap, gibberish - to cut bounces, protect deliverability, and lower ESP costs. Free to start.
ListSweep validates email addresses at scale using syntax rules, MX record lookups, live SMTP verification, disposable-domain and spam-trap detection - so every campaign lands in real inboxes, not bounce reports. Just want to check one address? Try the free single-email verifier → Every control documented on our security page . Accuracy methodology on the benchmark page . Public trust links on the proof page . The core validation engine is already competitive. The remaining objections are the predictable ones: formal certifications, deeper native integrations, and heavier public proof. ZeroBounce, Bouncer, Kickbox, Emailable, and Clearout all market stronger current certification…from listsweep.com
Does the same job
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Email Verification in Google Sheets v22020 · ▲246Verify up to 230K email addresses directly in Google Sheets
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