my-email-verify-api

Email verification prevents bounces by checking address syntax, DNS, and MX records to classify recipients as deliverable or undeliverable before you send. This removes invalid addresses from contact lists, protecting your sender reputation from delivery failures.

The best way to clean an email list is to verify each address for valid syntax and DNS records, then filter by mailbox confidence scores. This process categorizes contacts into deliverable, undeliverable, or unknown results, ensuring your outbound campaigns reach valid recipients.

Yes, you can verify Microsoft-hosted mailboxes for deliverability filtering. The process checks specific Microsoft-hosted mailbox signals alongside standard DNS and MX records to accurately classify whether those email addresses are deliverable before your campaign.

An unknown email verification result means the address could not be definitively classified as deliverable or undeliverable. You should handle it by routing those uncertain contacts through deeper SMTP validation for a final confidence recommendation before sending.

You need SMTP validation when your email verification returns a low confidence score or an unknown verdict. Deeper SMTP validation confirms mailbox existence for uncertain addresses, ensuring your outbound campaigns avoid bounces and maintain deliverability.