Posting Custom Headers with Webhooks Delivery

July 17, 2017
As an additional security measure for webhooks batch POSTs, you may wish to include custom headers so that batches can be securely sent to your webhook endpoint(s). This gives you the option of rejecting webhook batches if these custom headers and associated values are not included in the batch. The SparkPost webhooks API supports setting…
read more

Managing Sending Domains

May 12, 2017
This article covers managing sending domains in an efficient manner, while ensuring that they are properly set up and ready for sending.
read more

Using Unsubscribe Reports

April 29, 2017
Using unsubscribe reports to link unsubscribe, list unsubscribe and example implementations through creating and updating an existing Webhook using the API.
read more

Using Suppression Lists

April 29, 2017
A suppression list — or exclusion list — is a list of recipient email addresses to which you do NOT want to send email. Learn more.
read more

Uploading and Storing a Recipient List as CSV file

April 29, 2017
This user guide walks you through the steps of uploading and storing a recipient list as CSV file when you are using SparkPost to send email.
read more

550. 5.7.1 Unconfigured Sending Domain

April 29, 2017
Definition and solutions for when you receive a 550 5.7.1 Unconfigured Sending Domain error message as a response when sending a transmission.
read more

Transmission Best Practices

April 29, 2017
This Transmission Best Practices guide covers sending transmissions and monitoring the results for errors. It is intended for a technical audience.
read more

Subaccounts in Sparkpost and SparkPost Enterprise

April 29, 2017
This guide introduces SparkPost's subaccount functionality, which will allow administrators to support separate business units, mailstreams, or customers.
read more

Setting up Unsubscribe Links

April 29, 2017
How to set up unsubscribe links: Step-by-step guide to implementing link unsubscribe and list unsubscribe events in SparkPost
read more