I've been running this plugin for over a year and it's been great! The setup process with Sparkpost was quick and easy. Great solution for an email service.
I was in a rush to change email services, I found this plugin, signed up on Sparkpost and had it working in just 5 minutes. Sending emails fine, Mail-tester.com gave me a score 10/10 and bounced emails working fine too.
Amazing.