#email-list-verification
3 tools

Blaze Verify
★ 2.3Simple, reliable, and affordable list cleaning shouldn’t be hard to find. Blaze Verify helps marketers and developers build powerful and effective marketing campaigns.
FreemiumOnlineSoftware as a Service SaaS

MARCOM Robot Email Validation Bot
★ 1.5Establish your first line of defense against 10-minute domains and junk emails to prevent poor quality data from entering your Marketing Automation platform and CRM.
FreemiumIntercomMailChimp

Null Bounce
★ 2.7Null Bounce is an email validation tool that helps companies decrease the bounce rate for email campaigns. Also, the service is available as an API, which can be used, for example, on sign-up forms to ensure that user submits a valid email address.
PaidOnlineSoftware as a Service SaaS