Fetch Secure Email Information API allows you to validate and analyze any email address with high accuracy and reliability. It evaluates multiple technical and security aspects, ensuring that emails are legitimate and functional. Among its capabilities, it checks whether the email format is valid according to standards, ensuring that the local-part@domain structure is correct. In addition, it verifies the existence of the domain and its MX records, determining whether the associated mail server can receive messages.
The API also analyzes SPF and DMARC records to identify email authentication policies and prevent spoofing or phishing. It detects whether the email address is on known blacklists, preventing contact with potentially malicious emails.
The API also detects suspicious parts of the email address and provides an overall trust rating. Each result includes information from associated TXT records, such as third-party verifications, SMIME certificates, or validation keys, adding an extra layer of technical verification.
{"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":"2026-05-11T12:56:10.238Z"}
curl --location --request GET 'https://zylalabs.com/api/10323/fetch+secure+email+information+api/19877/[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 Checker endpoint returns detailed validation results for an email address, including its format validity, domain existence, MX records, blacklist status, SPF and DMARC analysis, and an overall trust rating.
Key fields in the response include "validity" (indicating format correctness), "domain" (the email's domain), "mx_records" (mail server details), "blacklist_status" (if the email is flagged), and "trust_rating" (overall reliability score).
The Email Checker endpoint accepts parameters such as "email" (the email address to verify) and optional flags for detailed checks, like "include_spf" or "include_dmarc" to enhance the analysis.
The response data is structured in a JSON format, with nested objects for detailed checks. Each section corresponds to specific validation aspects, making it easy to parse and understand the results.
The API sources data from DNS records, public blacklists, and email authentication protocols (SPF, DMARC). This multi-source approach enhances the accuracy and reliability of the verification process.
Data accuracy is maintained through regular updates from authoritative sources, continuous monitoring of email validation standards, and automated checks against known blacklists and email authentication records.
Typical use cases include validating user sign-ups, preventing spam in marketing campaigns, ensuring reliable communication in business transactions, and enhancing security by filtering out suspicious emails.
Users can utilize the returned data by integrating it into their applications to filter out invalid or risky emails, improve user experience during registration, and enhance security measures against phishing attacks.
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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.
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