Two transactional email providers, compared on price, features and ratings, so you can pick fast.
Updated October 2026
THE VERDICT
Mandrill wins on developer experience. SparkPost wins on price and sending APIs.
Mandrill starts at $20 versus SparkPost's $20. Mandrill rates higher with developers (4.2 vs 4.0 on G2). Pick based on volume and team, and the scorecard below breaks down where each one leads.
Winner cells are tinted, green where Mandrill leads, violet where SparkPost does.
FAQ
Mandrill starts at $20 versus SparkPost's $20. Because pricing models differ by tier, the cheaper option depends on your monthly volume, so compare the pricing rows in the scorecard above.
Pricing is block based, where each block is 25,000 emails. Blocks cost $20 each for the first 20 blocks (up to 500,000 emails), then drop to $18, $16, $14, $12, and $10 per block at higher volumes. These charges are on top of a required Mailchimp Standard or Premium marketing plan, and dedicated IP addresses cost an additional $29.95 per month.
SparkPost provides official client libraries for Node.js, Python, PHP, Java, Go, and Elixir, alongside a documented REST API and SMTP relay. This lets most backend stacks integrate without building a client from scratch. A C# library also exists but is community maintained rather than an official SparkPost release.
Yes. Many teams route different message types through different providers or fail over between them. Courier lets you send through both behind a single API and switch providers without changing your code.
Why not both?
Use both behind one API.
Route Mandrill, SparkPost, or both, and switch providers without changing your code. Courier sits in front of every channel.
Pricing, plans and feature availability as of October 2026 and may change. Ratings are aggregated from public review platforms. Mandrill is Mailchimp Transactional; SparkPost is a Bird (MessageBird) product.