Overview
Abstract API Email Validation checks whether an email address is deliverable, properly formatted, and not from a disposable or spam-trap domain. It performs DNS MX record checks, SMTP verification, and syntax analysis to give a multi-signal verdict without actually sending an email. An API key from abstractapi.com is required; a free tier with limited monthly checks is available.
Beginner Tip
Email validation APIs are useful when building sign-up forms — they catch typos and fake addresses before they enter your database. You need an API key from abstractapi.com; the free tier is generous enough for small projects and testing.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"message_id": "msg_abc123def456",
"status": "delivered",
"to": "[email protected]",
"subject": "Welcome!",
"timestamp": "2025-01-15T10:30:00Z"
} Field Reference
email The email address that was submitted for validation deliverability Overall deliverability verdict: DELIVERABLE, UNDELIVERABLE, or RISKY is_valid_format Contains a boolean value field indicating whether the email passes RFC 5321 syntax rules is_mx_found Contains a boolean value field indicating whether a valid MX record was found for the email domain is_disposable_email Contains a boolean value field flagging known temporary or throwaway email providers quality_score A 0.0–1.0 score summarizing overall email quality and deliverability likelihood Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://www.abstractapi.com/email-verification-validation-api";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
Related Tags
Alternatives to Email Validation
Technical alternatives for different use cases.
Specialized in detecting disposable email addresses
Blocking temporary/disposable email signups
Full email deliverability checking
Email validation with SMTP check and catch-all detection
Deep validation with SMTP verification
Free tier availability
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