Wahadata is email data validation software offers email verification, email address verification, b2b/ b2c email list verify
Proofy - Quickly validate and verify your email lists.
Email Verification Tool - A Google Sheets add-on for bulk email verification
Breadcrumbs Free Email Verifier - Free forever to validate up to 10,000 emails with 1-click
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Kickbox - Verify your email address lists with our drag and drop interface, or integrate into your app with our API. Prevent fake and bot account sign-ups by confirming your users are real humans with a real email address.