Sparkpost

SparkPost is built by Message Systems, the world’s #1 email infrastructure provider. Customers including Facebook, LinkedIn, Twitter, Groupon, Salesforce, Marketo, Pinterest and Comcast send over 3 trillion messages a year, over 25% of the world’s legitimate email. These companies choose us to provide the deliverability, speed and insight they need to drive customer engagement for their business.

Iterable has a native integration with SparkPost for email sending services. If you have an existing SparkPost account, Iterable can connect to your SparkPost instance and serve as your orchestration and personalization service.