Mail Check Reviews — Discover what people think of this product.

MailCheck is an advanced email verification API that helps businesses validate email addresses in real-time. Our service goes beyond simple syntax checks to ensure you collect only high-quality, deliverable email addresses.

Identify and block disposable email addresses and detect fraudulent sign-up attempts. MailCheck offers two levels of email verification to meet different needs.

Understanding Verification Methods: S1 vs TBA Verification

S1 Verification: Standard verification that checks email syntax, domain validity, digging into the records associated with the domain, Analysing domain usages apart from email and compares against our database of known disposable email providers. This is suitable for most applications and provides a good balance between accuracy and speed.

Fast response times No user interaction required Consumes 1 credit per verification Recommended for sign-up forms and bulk verification

TBA Verification (Task-Based Authentication): Advanced verification that includes all S1 checks plus additional behavioral analysis and task-based verification. This provides the highest level of certainty about an email's validity.

Higher accuracy in detecting sophisticated fraud attempts May require additional processing time Consumes 1 credits per verification Recommended when needs_TBA is true from an S1 verification Recommended Workflow:

Start with S1 verification for all email addresses If is_valid is true and needs_TBA is false, accept the email If is_valid is false, and needs_TBA is false, reject the email If needs_TBA is true, perform a TBA verification for higher certainty