Using the Transmissions API, you can schedule your emails to be delivered up to three days in the future. All you have to do is specify a date and time in your API request, and we will not send your emails until then. Read on to learn more. # Getting Started To schedule a transmission,…

PowerMTA 5.0 launched on September 17th, 2019, after nearly 2 years in beta testing. PowerMTA 5.0 was designed with operational efficiency, security, speed and disaster recovery in mind in addition to a drastic improvement that allows for much faster delivery when using encryption. To officially welcome PMTA under the SparkPost umbrella, we wanted to do…

SparkPost processes over half a trillion email events a month, billions per day, which power SparkPost SignalsTM Analytics reports, Event Webhooks, and the Events API. SparkPost’s Enrichment is a process that adds metadata fields to engagement events (opens and clicks as well as unsubscribes and spam complaints) by looking up this metadata from the original…

SparkPost supports HTTPS engagement tracking for customers via self-service for all SparkPost customers. Learn more here.

The SparkPost Events Search API is a new tool providing robust querying capabilities on top of your SparkPost event data.

On January 12, 2019, single-recipient transmissions and inline content validation will become asynchronous. Learn more here.

In an effort to standardize our API responses to provide a more consistent API experience, all current error responses will be updated on January 12 2019.

SparkPost’s Bring Your Own IP program provides senders of large volumes of email with the ability to quickly switch from their existing provider.

SparkPost logs several events that can be used to track the lifecycle of your emails. Individual events are available via Webhooks or the Events API.