From the company trusted by world-class technology leaders to send over 25% of all legitimate email. Customers include:

Why SparkPost?

Superior Deliverability

Proven highest deliverability rates in the industry will increase engagement and boost revenue.

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Real-Time Analytics

Get the clearest picture possible of what happens to your email with 42 real-time metrics.

Screenshot of SparkPost’s real-time analytics

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Performance and Scalability

You want fast? That's what we do. The fastest delivery with guaranteed burst rates and SLAs.

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3 Steps to Inbox Excellence

1 Integrate

Get launched and sending through the cloud in minutes.

  • Integrate through SMTP and REST APIs.
  • Ramp up with comprehensive docs and robust SDKs.

2 Deliver

Hit the inbox faster, with the best delivery rates.

  • Send with the same technology as the world's biggest senders.
  • Experience fewer bounces, blocks or delays.

3 Measure

Continually improve with actionable analytics.

  • Drill down into real-time data reporting on over 40 metrics.
  • Access data through APIs, webhooks and dashboards.

  • "Being a premiere customer of the SparkPost service has allowed us to achieve the high levels of reliability and performance … We are very excited to work with Message Systems."

    – Tara Clark, Director of Email at Zillow

  • "Thanks to SparkPost’s deep and broad insight into our email message disposition, we now know exactly what’s happening with our messages. SparkPost not only supports our current needs as we’re first starting out, but will scale with us as we grow into the market-leading company we know we will be."

    – Justin Newton, CEO at NetKi

  • "We consider the excellent deliverability we get with SparkPost to be a competitive advantage for us. Our volumes are at an all-time high, and we’re confident this can scale even higher as needed."

    – Justin Zhu, Co-founder & CEO