There is even identical copy on the FAQ: http://documentation.mailgun.com/faqs.html#why-not-just-use-sendmail-postfix-courier-imap http://documentation.mailgun.

There is even identical copy on the FAQ: http://documentation.mailgun.com/faqs.html#why-not-just-use-sendmail-postfix-courier-imap http://documentation.mailgun.com/faqs.html#why-not-just-use-... http://documentation.cloudemailapp.com/faqs.html#why-not-just-use-sendmail-postfix-courier-imap http://documentation.cloudemailapp.com/faqs.html#why-not-jus...