ActiveCampaign Postmark vs. SparkPost

Postmark is the email delivery service that people actually like. Stop worrying if your emails made it to the inbox, and get back to focusing on what matters—building great products. Start sending in minutes: With API libraries for pretty much every programming language you can think of, Postmark fits seamlessly into any stack. Stellar deliverability (without paying for a dedicated IP): You might say that Postmark has serious street cred with inbox providers.

SparkPost is the world’s #1 email infrastructure provider and the most performant email delivery service available. Our customers send over 5 trillion messages a year, over 37 percent of the world’s business email. Several SparkPost customers—including the largest social networks—send over a billion emails a day, making us the fastest-growing email delivery service provider on the market. For more than a decade, we’ve developed the leading technology in the email industry and the first email delivery service truly architected for the cloud.