{
"email": "[email protected]",
"valid": true,
"score": 100,
"verdict": "valid",
"checks": {
"syntax": true,
"domainExists": true,
"mxFound": true,
"disposable": false,
"roleAccount": false,
"freeProvider": true
},
"mxRecords": [
"alt4.gmail-smtp-in.l.google.com",
"alt3.gmail-smtp-in.l.google.com",
"alt2.gmail-smtp-in.l.google.com",
"alt1.gmail-smtp-in.l.google.com",
"gmail-smtp-in.l.google.com"
],
"suggestion": null,
"note": "Checks domain mail routing (MX) and risk signals. Does not probe individual mailbox existence."
}
curl --location --request POST 'https://zylalabs.com/api/7533/email+validity+check+api/12154/[email protected]' --header 'Authorization: Bearer YOUR_API_KEY'
--data-raw '{
"email": "[email protected]"
}'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Email Validity Check API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
|
Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
|
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
(Save 2 months with annual billing 🎉)
Validate email addresses and assess their reliability through a comprehensive set of checks covering syntax, domain configuration, mail server availability, and potential risk indicators. This API evaluates whether an email address follows standard formatting rules, whether its domain exists, and whether valid Mail Exchange (MX) records are configured to receive email.
Each response includes an overall validation result, a numerical confidence score, and a verdict indicating the assessed status of the email address. The API also provides individual check results, allowing applications to identify specific validation conditions, including syntax validity, domain existence, MX record availability, disposable email usage, role-based addresses, and free email provider identification.
When available, the response includes the domain's MX records, helping developers inspect the mail routing configuration associated with the submitted address. A suggested correction may also be returned when an alternative email address is identified.
This API is suitable for registration forms, customer onboarding, lead validation, CRM systems, marketing platforms, and data quality workflows. It helps businesses identify potentially unreliable email addresses before storing or processing them.
Please note that the API validates domain-level mail configuration and risk signals but does not verify whether an individual mailbox actually exists or can receive messages.
The API performs a comprehensive set of checks including syntax validation to ensure the email follows standard formatting rules, domain existence checks, MX record availability to confirm mail server configuration, and risk assessments. It also identifies disposable emails, role-based accounts, and free email providers.
Each API response includes an overall validation result, a numerical confidence score indicating the reliability of the email, and a verdict on its assessed status. It also provides detailed results for individual checks such as syntax validity, domain existence, MX record availability, and identifies disposable, role, or free email types. MX records and potential correction suggestions may also be returned when available.
This API is highly suitable for various business applications including registration forms to ensure valid user sign-ups, customer onboarding processes, lead validation to qualify potential customers, integration with CRM systems for data accuracy, marketing platforms to improve campaign deliverability, and data quality workflows to clean existing email lists.
The core value proposition lies in its ability to proactively identify potentially unreliable or invalid email addresses before they are stored or processed. This helps businesses improve data quality, reduce bounce rates, enhance customer engagement, and streamline operations by ensuring they are communicating with valid contacts.
No, the API validates the domain-level mail configuration and assesses risk signals associated with the email address. It does not verify whether a specific individual mailbox exists or is capable of receiving messages. The validation focuses on the address's structural integrity and the domain's ability to handle email.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund