Trusted by 10,000+ developers worldwide

Email infrastructure
that just works

Build, send, and scale your email operations with confidence. Powerful APIs, reliable delivery, and insights that matter.

99.9%
Uptime guarantee
2.5B+
Emails delivered monthly
<50ms
Average API response
24/7
Expert support

Everything you need to send emails at scale

From transactional emails to marketing campaigns, we provide the tools and infrastructure to power your email operations.

Developer-first API

Intuitive REST and SMTP APIs with comprehensive SDKs for every major language. Get started in minutes, not days.

Lightning-fast delivery

Optimized infrastructure ensures your emails reach inboxes in milliseconds. Real-time processing at scale.

Enterprise security

SOC 2 Type II certified with end-to-end encryption. Your data and your customers are always protected.

Advanced analytics

Deep insights into delivery rates, engagement metrics, and performance trends. Make data-driven decisions.

Automated workflows

Build sophisticated email sequences with triggers, conditions, and personalization at scale.

Global infrastructure

Distributed across 15+ regions worldwide for optimal deliverability and compliance with local regulations.

Simple integration, powerful results

Get up and running in minutes with our intuitive API. Whether you're sending a single email or millions, the experience is seamless.

  • Comprehensive documentation
    Clear guides and examples for every use case
  • Official SDKs
    Native libraries for Node.js, Python, Ruby, PHP, and more
  • Webhook support
    Real-time notifications for delivery, opens, and clicks
import { SystemSender } from '@system-sender/node';

const client = new SystemSender({
  apiKey: process.env.SYSTEM_SENDER_API_KEY
});

await client.send({
  from: '[email protected]',
  to: '[email protected]',
  subject: 'Welcome to our platform',
  html: '<h1>Welcome!</h1><p>Thanks for joining.</p>'
});

Trusted by teams worldwide

Join thousands of developers and businesses who rely on System Sender for their email infrastructure.

"System Sender transformed how we handle transactional emails. The API is intuitive, delivery is instant, and the analytics give us insights we never had before."
Sarah Chen
CTO at Streamline
"We migrated from our previous provider in under an hour. The difference in deliverability rates was immediately noticeable. Best decision we made this year."
Marcus Rodriguez
Lead Developer at Velocity Labs
"The webhook system is incredibly reliable. We process millions of events monthly without a single hiccup. Their infrastructure is truly enterprise-grade."
Emily Watson
Engineering Manager at DataFlow

Simple, transparent pricing

Start free and scale as you grow. No hidden fees, no surprises.

Starter

Perfect for side projects and testing

Free
  • 10,000 emails per month
  • Basic analytics
  • Email support
  • API access
  • 7-day log retention
Most popular

Professional

For growing businesses and startups

$49/month
  • 100,000 emails per month
  • Advanced analytics
  • Priority support
  • Webhook notifications
  • 30-day log retention
  • Custom domains
  • Team collaboration

Enterprise

For large-scale operations

Custom
  • Unlimited emails
  • Dedicated infrastructure
  • 24/7 phone support
  • Custom SLA
  • Unlimited log retention
  • Advanced security
  • Dedicated account manager

Ready to transform your email infrastructure?

Join thousands of developers who trust System Sender for reliable, scalable email delivery. Start sending in minutes.