```html MailCore — Reliable Email Infrastructure
Email infrastructure built for modern applications

Email delivery you can depend on.

A reliable infrastructure layer for transactional email, application notifications and customer communications. Simple APIs, clear delivery data and infrastructure designed to scale with your business.

Get Started Explore API
Delivery Overview ● All systems operational
Messages Delivered 98.7%
API Requests 1.28M
Average Latency 182ms

Built for teams that value reliable delivery

PRODUCT DEVELOPMENT PLATFORM OPERATIONS SUPPORT
Platform

Everything you need to deliver email reliably.

Connect your application to a dependable email infrastructure layer without building and maintaining the delivery stack yourself.

API

Developer API

A clean and predictable API designed for applications, services and automated transactional messaging.

SMTP

SMTP Relay

Connect existing applications and mail systems using standard SMTP infrastructure.

DNS

Domain Authentication

Configure SPF, DKIM and DMARC to establish authenticated sending for your domains.

LOG

Delivery Logs

Understand delivery events, bounces and message activity through clear and structured logs.

TMP

Message Templates

Maintain reusable templates for notifications, account messages and application workflows.

SCL

Scalable Infrastructure

Start small and scale your sending infrastructure as your application and customer base grow.

API / send-message 
// Send a transactional message

POST /v1/messages

{
  "from": "notifications@example.com",
  "to": "customer@example.com",
  "subject": "Your account update",
  "html": "<h1>Hello</h1>"
}
Developers

Simple infrastructure. Powerful enough to scale.

Integrate email delivery into your application with a straightforward API or standard SMTP connection. Keep your application focused on your product while the infrastructure handles message delivery.

✓ REST API integration
✓ SMTP compatibility
✓ Domain authentication
✓ Delivery event monitoring
Security & Reliability

Infrastructure designed around trust.

Modern authentication, transparent delivery information and operational controls help teams maintain a reliable communication channel with their customers.

SPF

Authenticate authorized sending infrastructure.

DKIM

Cryptographically sign outgoing messages.

DMARC

Define domain-level authentication policies.

Monitoring

Track delivery activity and system health.

Get Started

Build your email infrastructure with confidence.

Connect your application and start building a reliable communication workflow for your customers.

Contact Us
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