The Email Secure Check API is a powerful and reliable solution designed to verify and analyze email addresses with exceptional accuracy. It helps users, businesses, and marketing teams ensure that the emails they collect or process are authentic, active, and secure. By validating emails in real time, it minimizes the risk of bounced messages, improves communication efficiency, and protects systems from spam or fraudulent activities.
When an email address is submitted, the API performs a multi-layered validation process. It begins by checking the syntactic structure to confirm that the address follows valid email formatting rules. It then examines the domain's DNS records and MX (Mail Exchange) configurations to ensure that the domain is capable of receiving messages. The API also evaluates whether the address belongs to a disposable or temporary email provider, helping organizations filter out low-quality or suspicious users.
In addition, the API identifies email forwarding services, assesses potential risks through heuristic analysis, and returns a detailed breakdown of the results, including indicators such as valid, blocked, disposable, email forwarder, and a risk score. It also provides information about the MX host, IP address, and DNS priority, ensuring transparency and accuracy in every validation.
The Email Secure Check API is ideal for applications that require clean and verified email lists, such as registration forms, CRM, newsletters, or transactional platforms. Its JSON-based response structure makes it easy to integrate with any system or programming language. With fast performance and up-to-date data sources, this API ensures consistent and reliable validation across all global domains.
Whether you want to improve delivery rates, reduce spam complaints, or maintain a reliable user database, the Email Secure Check API offers all the tools you need to optimize and protect your email verification process. By combining real-time detection, domain intelligence, and risk scoring, it provides comprehensive insights that improve communication reliability and user engagement.
{"valid":true,"block":false,"disposable":false,"email_forwarder":true,"domain":"gmail.com","text":"Email appears valid","reason":"Heuristic analysis: WM1","risk":10,"mx_host":"gmail-smtp-in.l.google.com.","mx_ip":"192.178.155.26","mx_info":"Using MX pointer gmail-smtp-in.l.google.com. from DNS with priority: 5","last_changed_at":"2026-05-11T12:55:17.049Z"}
curl --location --request GET 'https://zylalabs.com/api/10702/email+secure+check+api/20268/[email protected]' --header 'Authorization: Bearer YOUR_API_KEY'
| 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.
The Email Validation endpoint returns a JSON object containing validation results for the submitted email address. Key data includes validity status, whether the email is disposable or a forwarder, risk score, and MX record details.
Key fields in the response include "valid" (boolean), "block" (boolean), "disposable" (boolean), "email_forwarder" (boolean), "risk" (numeric score), "mx_host" (string), and "mx_ip" (string). Each field provides insights into the email's authenticity and risk level.
The response data is structured in a JSON format, with key-value pairs representing the validation results. This organization allows for easy parsing and integration into applications, enabling developers to quickly access relevant information.
The endpoint provides information on email validity, whether the email is from a disposable or forwarding domain, MX record details, and a risk assessment score. This comprehensive data helps users evaluate the quality of email addresses.
Data accuracy is maintained through continuous updates from reliable sources, including DNS records and heuristic analysis. The API employs rigorous validation processes to ensure that the information returned is current and trustworthy.
Typical use cases include validating email addresses during user registration, cleaning email lists for marketing campaigns, and ensuring secure communication in transactional platforms. This helps improve delivery rates and reduce spam.
Users can utilize the returned data by checking the "valid" field to confirm email authenticity, using the "risk" score to assess potential threats, and filtering out disposable or forwarding emails to maintain a high-quality user database.
Standard data patterns include a "valid" field returning true for legitimate emails, "disposable" returning true for temporary addresses, and varying "risk" scores based on the email's characteristics. Users should expect consistent formatting across responses.
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.
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