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Email Validation API & Fraud Prevention

Powerful API for real-time email validation with AI-driven risk scoring, fraud detection, and comprehensive deliverability analysis. Reduce bounce rates, prevent fraud, protect sender reputation, and ensure data quality with enterprise-grade validation.

99%
Accuracy Rate
99.99%
Uptime SLA
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14-day free trial. No credit card required. 1000 free credits.

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{
  "emailAddress": "tatak17923@filipx.com",
  "emailProvider": "Temp-mail",   // Google, Microsoft, YopMail
  "emailType": "disposable",      // free, disposable, private
  "isDeliverable": "yes",         // yes, no, unknown
  "isMailboxFull": false,
  "isCatchAll": true,
  "isFormatValid": true,
  "emailCorrection": "",
  "isReachable": true,
  "riskReport": {
    "score": 1000,                // 200–1000 (higher = riskier)
    "level": "highest",           // "lowest" | "low" | "medium" | "high" | "highest"
    "baseAnalysis": [
      "blocklisted-domain",
      "disposable-domain",
      "spoofing-risk"
    ]
  },
  "addressSignals": {
    "tagDetected": false,         // plus-addressing present (user+tag@)
    "tagValue": "",
    "normalizedAddress": "tatak17923@filipx.com",
    "isRoleAddress": false,       // role/shared inbox (support, sales, etc.)
    "roleType": "",               // "support" | "sales" | "info" | ... | "other"
    "isNoReply": false,           // no-reply address detected
    "noReplyPattern": ""
  },
  "emailDNS": {
    "mx": [
      "10 mail.wallywatts.com",
      "10 mail.wabblywabble.com"
    ],
    "spfValid": true,
    "dkimConfigured": false,
    "dmarcValid": false,
    "mxRelay": false,              // true = uses/behaves like a relay service
    "mxRelayCategory": ""          // 'cloud-routing' 'alias-forwarded' 'security-gateway' 'transactional-relay'
  },
  "domain": {
    "name": "filipx.com",
    "enrichmentAvailable": true,
    "creationDate": "2015-08-23T18:02:54.000Z",
    "expirationDate": "2026-08-23T18:02:54.000Z",
    "updatedDate": "2025-09-23T15:34:43.000Z",
    "ageYears": 10,
    "registrar": "NameSilo, LLC",
    "isBlockListed": true,       // domain flagged by one or more well-known sources (DBL)
    "mtaStsStatus": "unknown",   // "present" | "invalid" | "absent" | "unknown" (domain-level)
    "bimiStatus": "unknown",     // "present" | "present-no-vmc" | "invalid" | "absent" | "unknown"
    "hasVMC": false,
    "aRecordValid": false,
    "aRecordReverseHost": "",
    "sslValid": false
  }
}

Enterprise-Grade Email Validation API

Comprehensive validation capabilities designed for scale, reliability, and accuracy. Built to handle millions of validations with consistent performance.

AI-Driven Risk Scoring

Machine learning models analyze email patterns, provider behavior, and historical data to provide accurate risk scores (200-1000) and fraud detection insights for every validation.

Real-Time Validation

Instant email verification with DNS validation, SMTP checks, and deliverability analysis. Our global endpoints ensure fast response times regardless of your location.

Bulk Processing

Process thousands of emails asynchronously with our batch API. Track job status programmatically and download results in JSON or CSV format for easy integration with your workflows.

Enterprise Security

SOC 2 compliant infrastructure with encryption in transit and at rest, IP allowlists, unlimited API keys, SSO, granular permissions, and comprehensive audit logging.

Comprehensive Data

Rich validation results including email type, provider details, disposable email detection, spam trap identification, and deliverability confidence scores.

Robust API Design

Clean, intuitive API with comprehensive documentation and native SDKs for Python, Node.js, PHP, and Java for seamless integration.

Processing millions of validations daily

Simple Integration in Major Languages

Get started with just a few lines of code. Our API and native SDKs make email validation seamless across any platform or programming language.

import { EmailInsights } from '@opportify/sdk-nodejs';

const clientEmailInsights = new EmailInsights({
  version: '1.0',
  apiKey: 'YOUR_API_KEY'
});

async function analyzeEmail() {
  try {
    const response = await clientEmailInsights.analyze({
      email: "user@example.com",
      enableAutoCorrection: true,
      enableAI: true,
    });

    console.log('Risk Score:', response.riskScore);
    console.log('Deliverable:', response.deliverable);
    console.log('Email Type:', response.type);
  } catch (error: unknown) {
    console.error('Validation error:', error);
  }
}

analyzeEmail();

Email Validation API Use Cases

Real-world applications where our API delivers value across industries and use cases.

SaaS & Web Applications

  • User Registration: Validate emails at signup to prevent fake accounts and ensure users provide valid contact information for account recovery.

  • Form Validation: Provide real-time feedback to users, automatically suggest corrections for typos, and block disposable email addresses.

  • User Onboarding: Ensure communication channels are open from day one by validating emails before sending welcome sequences and onboarding materials.

E-commerce & Transactions

  • Checkout Validation: Validate customer emails during checkout to ensure order confirmations, shipping notifications, and receipts reach customers.

  • Fraud Prevention: Identify high-risk emails and disposable addresses to reduce fraudulent transactions and chargebacks.

  • Customer Support: Verify email addresses before sending support tickets and updates to reduce support overhead from bounced messages.

Marketing & CRM Systems

  • List Hygiene: Continuously validate contacts in your CRM and marketing automation platforms to maintain clean, deliverable lists.

  • Campaign Optimization: Validate lists before sending campaigns to improve deliverability rates and protect your sender reputation.

  • Lead Scoring: Incorporate email risk scores into lead qualification workflows to prioritize high-quality leads.

Data Quality & Compliance

  • Database Cleansing: Process large email databases to identify and remove invalid, risky, or inactive addresses and improve data quality.

  • Compliance Monitoring: Ensure email communication complies with data privacy regulations by validating consent and deliverability.

  • API Automation: Automate email validation in data pipelines and ETL processes to maintain consistent data quality standards.

Rapidly Expanding Integrations Ecosystem

As a dynamic startup, we're committed to rapidly expanding the integration ecosystem. Our API integrations merge the power of proprietary AI-Driven Insights products with industry-leading platforms. Join us on this exciting journey of growth and innovation, with new and exciting integrations coming your way!

Receive notification when a new integration is available.

Available integrations:

Coming soon:

API Email Validation FAQ

What is the API response time?

Our API typically responds in under 500ms for single email validations. We maintain 99.99% uptime with global edge endpoints to ensure consistent performance regardless of your location. Bulk validations are processed asynchronously for optimal performance.

What data does the API return?

Our API provides comprehensive validation results including:

  • • Email deliverability status (yes, no, unknown) and mailbox checks
  • • Risk score (200-1000) with AI-driven fraud detection and risk level
  • • Email type (free, disposable, private) and provider identification
  • • Address signals (role detection, no-reply patterns, plus-addressing)
  • • DNS validation (MX, SPF, DKIM, DMARC, MTA-STS, BIMI)
  • • Domain information (age, registrar, SSL, blocklist status)

How are API requests authenticated?

All API requests require authentication using an API key passed in the request header. You can generate and manage unlimited API keys from your dashboard. Additional security features like IP allowlists and SSO are available for enhanced protection.

What are the rate limits?

The default rate limit for any paid option is 1,500 requests per 5 minutes. Rate limits can be expanded as needed based on your use case. Our SDKs include automatic retry logic with exponential backoff to handle rate limiting gracefully. Contact us to discuss custom rate limits for high-volume applications.

Can I validate emails in bulk via API?

Yes! Our batch validation endpoint allows you to submit up to 3MB per batch (approximately 100,000 emails in CSV format) for asynchronous processing. You can check job status via API and receive webhook notifications when processing completes. Results are available in JSON or CSV format.

Which programming languages are supported?

We provide native SDKs and comprehensive documentation for:

You can also use our REST API directly from any language that supports HTTP requests.

How do I get started with the API?

Getting started is simple:

  • 1. Sign up: Create a free account with a 14-day trial — no credit card required.
  • 2. Get API key: Generate your API key from the dashboard.
  • 3. Make your first call: Use our API documentation or SDKs to start validating.

Is the API secure and compliant?

Yes. We offer enterprise-grade security: encryption in transit and at rest, IP allowlists, unlimited API keys, single sign-on (SSO), granular user permissions, and detailed audit reporting.