I'm just looking into Amazons Web Services and I've used Elastic Beanstalk to set up a Ruby web app. It all works great but with one big exception. I cannot have user email accounts for the domain and cannot have incoming emails.
Is there a technical reason why this is the case (no incoming mail service), or am I missing something? I'm reading a lot about using Gmail or installing postfix manually, are these the only options, and if so why?