This article describes how to tell if you are affected by the upcoming transmissions API endpoint change for asynchronous suppressions described here and also how to prepare. # What Is Changing? The change announcement here has all the details including timing. Here is a short recap. The Transmissions API endpoint will no longer return 400…

# What is a Relay Webhook? A Relay Webhook calls your consumer when a user sends an email to one of your domains. SparkPost will receive an email sent to your Inbound Domain (e.g., [email protected]), format that email as a JSON payload, and POST it to your consumer. A Relay Webhook is not a mailbox;…

# Introduction The open pixel is a 1x1 transparent gif that we insert into messages to track which recipients open messages (aka renders). When an end recipient has images turned on in their client, the pixel is downloaded from our server, which allows us to record which recipient opened which message. Certain ISPs, like Gmail,…

This article "Enabling HTTPS Engagement" describes how to use a Content Delivery Network (CDN) to enable SSL engagement tracking for your domain.

The Enterprise Change log is a running list of new features and capabilities that have been rolled out on the SparkPost Enterprise service.

With SparkPost, using the cursor parameter allows users to download an entire suppression list if they wish or a full subset of their list

SparkPost provides the means to create new A/B tests to see which template performs better and view completed results through our A/B Testing API

The SparkPost change log is a running log of what's new, what's been fixed, and what's been changed in SparkPost.

This Webhook Event Reference Guide is for developers who are consuming SparkPost Webhook Events and need to understand the structure of events being sent.