Email Verifier - Email verifier app lets you verify email.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
Find That Email - The yellow pages of emails.
useBouncer - The most intelligent email checker, that lets you focus on valuable relationships! Verify email address with simple App or easy-to-integrate API.
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.