Add-ons SparkPost Mail Transport for XF 2.2 2.1.4

Setup
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
• (Note, current version instructs you to allow Send via SMTP API permission, but this is not required - these instructions will be removed in a future release).

Once you have your API key, change the Email transport method in the Email options page to "SparkPost" and paste your API key into the supplied box.