SparkPost is the SaaS platform that has been built by the team at Message Systems and PowerMTA. They also recently acquired the email deliverability vendor eDataSource. Customers across the various applications and services include including Facebook, LinkedIn, Twitter, Groupon, Salesforce, Marketo, Pinterest and Comcast sending over 3 trillion messages a year. With additional recent acquisitions of business like BrainBulb SparkPost now bill itself as the world's first predictive email intelligence platform. Their mission is to help brands predict and optimize email performance with unprecedented levels of data visibility and insight.