I'm in the process (with another piece of software) of dealing with the Mandrill decision to "close" and force everyone to have a paid account though MailChimp. A lot of people are moving from the service.
While researching new providers, I found an interesting chart. I know Jamroom uses Mailgun for mail - which is a great service - but looking at the chart below the deliverability is much higher for other providers. Maybe you guys would want to create another module for SparkPost or SendGrid?
Just a suggestion.
updated by @jimmy: 05/29/16 09:31:30PM