Email Verification API
Stop wasting time and money on unreachable contacts. Using our email verification API, you can verify your contacts in an instant at the source such that only valid and correct addresses are added to your database.
Importance of Email Verification
Each invalid address that you save will negatively affect the email verification health score and consume your resources. By using robust email validation in your workflows, you will be able to notice the following: Fewer bounces, better inbox placement Cleaners from which lists are ready to be segmented/personalized Improved sender reputation in overall campaigns Reduced time and cost associated with unnecessary transmission of documents. Validating new subscriptions or purging old data, being precise with email verification makes sure your data is clean and your results are high.
Integration Examples
Get started quickly with ready-to-copy code snippets in your favorite language.
curl -X POST "https://api.thedataclouds.com/email-verification" -H "Content-Type: application/json" -H "authkey: KEY" -d '{
"email": "[email protected]"
}'Integration ( Use Cases )
Signup Forms (React / Vue / HTML)
Stop bogus accounts before they are created - when the visitor tabs away from the email field, call the Hero API. If the reply status is anything except “valid”, ask the visitor to correct the address. Your user table stays free of junk addresses and your welcome email does not come back undelivered.
Manual & Automated Workflows
Checking email lists by hand or through your own set steps keeps data clean. Solid facts help your team make better choices, and you do not need a live link to other tools.
E-Commerce Checkout
An order receipt that bounces often turns into a chargeback or a support ticket. Verify the guest's email while the checkout is in progress so every confirmation lands in the inbox.
How Email Verification API works?
Format & Syntax Validation
Every verification starts by checking the structure of the email address. If the format does not follow accepted email standards, the address is rejected instantly without moving further.
Domain & MX Record Check
Next, the domain is validated to confirm it exists and can receive email. Addresses tied to domains without working mail exchange records are marked as undeliverable.
Mailbox Existence via SMTP
For valid domains, we perform a short SMTP handshake with the recipient’s mail server. This confirms whether the mailbox is recognized, then the session is closed before any email is sent.
Risk & Spam Trap Detection
Finally, the address is evaluated against known spam traps, disposable email providers, and internal risk signals. The resulting status reflects how the address would perform in real-world signups, campaigns, and transactions.
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