Adds a SparkPost mail transport option to have all mails sent via your SparkPost account.
This addon has full bounced email and unsubscribed email handling support using the SparkPost Events API - no mailbox required.
If you haven't already done so, you will need to configure a sending domain for your forum in your SparkPost account. It is highly recommended that you also set up a default bounce domain.
You will then need to create an API key with the following permissions:
- Events Search: Read-only
- Transmissions: Read/Write