Built for

Scale

Developers

Scale

Developers

Scale

Enterprise

Developers

Scale

Scale

Enterprise

Developers

Scale

Enterprise-grade deliverability

MX18 is a developer-first email platform, full-stack, instant to start, and built for complete control.

Our Product

Developer First Email Platform

Production-ready platform engineered for scale, speed, and reliability.
HTTP
Node.js
Python
PHP
Ruby
Go
Rust
Java
cURL
POST https://api.mx18.ai/v1/mail/send
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

{
  "from":  { "email": "no-reply@yourdomain.com", "name": "Your App" },
  "to":    [{ "email": "user@example.com", "name": "Jane Doe" }],
  "subject":"Welcome to Your App!",
  "content":[{ "type":"text/plain", "value":"Hello, {{firstName}}!" }],
  "personalizationData": { "firstName":"Jane" }
}
Learn more

Our Features

Engineered for Inbox Performance, Stability, and Transparency

Dedicated IP Management

Maintain full control over your reputation with isolated, high-trust IPs. Optimised routing ensures stable inbox placement for high-volume senders.

Real-Time Webhook Events

Receive delivery, bounce, open, click, and spam events instantly.Stream events to your backend for precise automation and monitoring.

Proactive Blocklist Monitoring

Automatic scanning for all major global blocklists with real-time alerts.Identify issues early and protect your domain and IP reputation

Automated Warmup Engine

Smart volume ramping based on engagement and ISP feedback patterns.Ensures safe scaling for new IPs and domains without risking reputation.

Automatic Suppression Management

Auto-handling of bounces, complaints, and unsubscribes at scale.Protects deliverability and keeps your lists compliant without manual effort.

GDPR & DPDP Compliance

Built to meet global data security and privacy laws.Ensures safe handling of user data with strict governance controls.

Battle-Tested Infrastructure

Distributed, multi-region architecture built for 99.9% uptime.Handles mission-critical email workloads with high consistency.

Custom Arguments Tracking

Attach metadata to messages for end-to-end flow visibility.Perfect for multi-tenant apps, log correlation, and analytics.

Sandbox Mode

Test email flows without sending live messages or impacting your domain.Ideal for staging, QA, and development environments.

Start sending with confidence. Scale without limits.