SparkPost
SparkPost is an HTTP-based email provider. Add it from the dashboard’s Relays page, choose SparkPost, and fill in the settings below. See the provider overview for how relays fit into routing.
How it works
Section titled “How it works”Dispatch sends through SparkPost’s REST API (JSON). All standard message capabilities are supported - see message features for the full list (multiple To recipients, CC, BCC, text + HTML bodies, custom headers, and attachments).
Settings
Section titled “Settings”| Setting | Required | Description |
|---|---|---|
| API Key | Yes | Your SparkPost API key. Encrypted at rest. |
| Region | No | Set for SparkPost EU accounts; leave blank for the default (US). |
- Create an API key in the SparkPost dashboard with Transmissions permission.
- If your account is on SparkPost EU, set the Region accordingly so requests hit the correct host.
- After saving, send a test email from the dashboard and watch the relay log live to confirm delivery.