You should add MailGun to this comparison and the graphs [1] http://mailgun.net http://mailgun.net [2] http://documentation.mailgun.net/faqs.html http://docum

You should add MailGun to this comparison and the graphs [1] http://mailgun.net http://mailgun.net [2] http://documentation.mailgun.net/faqs.html http://documentation.mailgun.net/faqs.html [3] http://mailgun.net/pricing http://mailgun.net/pricing