Does the job!
iovation - iovation offers device-based solutions for fraud prevention and authentication.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Sift - Digital Trust & Safety enables your business to grow, innovate, introduce new products, features, and business models – without increased risk.
Email Verifier - Email verifier app lets you verify email.
Kount - eCommerce fraud detection & prevention
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI