Similar to SendGrid extension and others, a request came in via enwiki to have an extension using the SparkPost API with similar functionality.

See request here: https://meta.wikimedia.org/wiki/User_talk:X-Savitar#Would_you_pleased_to_write_a_sparkpost_email_extension_for_Mediawiki?

In order to execute this request, the following would be necessary;

• Do we need just an extension for email delivery like SendGrid for example? yes, per task description.
• Request creation of a Gerrit repo for the project
• Check request whether repo is created (this can take a few days) - thanks @MarcoAurelio
• Build the extension (Extension:SparkPost) - done! PHPUnit tests left
• Create an extension page on MediaWiki org documenting this extension - here: https://www.mediawiki.org/wiki/Extension:SparkPost.
• Write PHPUnit tests for the extension - in progress
• Do a release of the extension to be deployed - 1.0 and 1.1 are out and already in use.
• Maintain this extension over time - definitely, my eye is on it always.