
SparkPost is a popular e-mail delivery service for high mail delivery needs. It's an easy to use service also integration with other services is easy with SparkPost. It has a well documented and designed RESTful API. Campaigns, A/B testing, high delivery rates, real time analytics, performance, ease of use and scalability are my best features of SparkPost. SparkPost API provides ready to use clients for NodeJS, Java, Python, PHP and Go. Overall, my SparkPost experience as a developer was satisfying. Review collected by and hosted on G2.com.
Unlike other similar e-mail delivery services, SparkPost is not providing a client for Ruby. It is interesting to see Go in supported clients but not Ruby. Review collected by and hosted on G2.com.