apilayer mailboxlayer

API

Real-time email validation API for accurate deliverability checks

Overview

The apilayer mailboxlayer API provides RESTful endpoints for real-time email validation. Its primary /validate endpoint accepts an email address and returns JSON data with deliverability status, syntax checks, MX record validity, SMTP verification, and spam trap detection. Use cases include verifying user emails during sign-up to reduce fake accounts, cleaning marketing lists to lower bounce rates, and ensuring compliance with anti-spam regulations. It integrates seamlessly with web apps, CRMs, and marketing tools, offering scalable access for small projects and enterprise needs.

Example Integration (JavaScript)

script.js JS


fetch('https://mailboxlayer.com')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Response Format
Real-time Validation
MX/SMTP Checks
Spam Trap Detection
Bulk Validation Support

Frequently Asked Questions

? Is apilayer mailboxlayer free to use?

Yes, it offers a free tier with up to 1000 requests per month. Paid plans are available for higher limits and advanced features like bulk validation.

? Does it require an API Key?

Yes, you need an API key from apilayer to access the mailboxlayer API. The key is included in request headers or query parameters.

? What is the response format?

All responses are in JSON format, including details like deliverability status, MX record check results, and spam trap detection.

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Tool Info

Pricing Freemium

Category Email

Platform Public API

Pros

⊕ Easy Integration
⊕ Accurate Deliverability Insights
⊕ Scalable Pricing Plans
⊕ Detailed Validation Metadata

Cons

⊖ Rate Limited Free Tier (1000 Requests/Month)
⊖ Requires API Key
⊖ Advanced Features Locked Behind Paid Plans