The Bayesian Logic in SparkPost’s A/B Testing API

Our new API feature for A/B testing transactional emails uses a statistical algorithm, Bayesian Logic, for picking the winning variant of the message.

read more

New Feature: A/B Testing API for Transactional Email and Notifications

Transactional email has unique testing requirements. SparkPost’s A/B Testing API is optimized for testing real-time use cases like app notifications.

read more

How to Determine the Subaccount ID from a Subaccount API Key

For ESPs needing to determine a subaccount CID to pull analytics data from SparkPost, this hack allows you to do so using the subaccount API.

read more

High Touch Client Onboarding Using Process Street and Zapier

How to build a zap connecting SparkPost with Process Street to produce a high touch client onboarding experience for your sales outreach teams.

read more

Sending Email from Google Cloud Functions

Here's a quick and easy tutorial on serverless transactional email with SparkPost and Google’s Cloud Functions on Firebase.

read more

Minds (and Rates), They Are a Changin' !

We're updating the way we calculate certain metrics rates within our UI. Learn why we're making these changes and what you can expect when you log in.

read more

How Templates Work with Subaccounts

A helpful how-to guide from one of our sales engineers on owning, managing and sharing templates with SparkPost subaccounts.

read more

Templates All The Way Down (To The Macros)

Learn how you can now extend the SparkPost templating language with client-side macros, powered by the code you choose.

read more

How To Validate The Data You're Sending To Email Templates

Personalized emails mean better engagement rates. This new PHP library helps you get there by validating that email templates have the data they need.

read more