Reliable Email Delivery

Enterprise-grade Email Delivery for All Senders

Reliable Delivery You Can Count On

Operating email infrastructure is a difficult, time-consuming distraction from building great products, apps, and services. We make it simple for you to implement notifications, product emails, and promotional emails with reliability and security your business can count on.

Scaling For The Future

Email is difficult to scale, and building and maintaining it requires specialized operational skills. Whether you’re sending millions or billions of emails, our solution can scale with you as your business grows.

The #1 Most Trusted Email Delivery Service

The world’s most demanding senders rely on SparkPost to deliver billions of emails every day. 

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99.99% Uptime Reliability

SparkPost delivers unmatched uptime and resilience, backed by an SLA.

Enterprise email SLA

Auto-Scaling With Guaranteed Burst Rates

You’ll see the same low latency—less than two seconds in transit—whether you’re sending 100 messages or a billion. SparkPost burst rate SLAs are backed with enterprise-grade financial commitments.

Email Experts You Can Rely On

No one understands scaling email like our email infrastructure team. Our dedicated deliverability and site reliability engineering (SRE) team ensures you can keep sending and receiving email 24 hours a day, 365 days a year.

Learn More About Email Security & Reliability

Develop your email expertise with these helpful resources and reports.

Email Security in the Era of the Cloud

Email Security in the Cloud

Security in the cloud is a critical business concern. Our Chief Information Security Officer briefs you on what you need to know about cloud email security.

Ready to Learn More?

Take the next step with email and learn how SparkPost can help your business grow.