Just because it (installing and managing) is so painful, have you considered 3rd party services. I use http://www.mailgun.com/ http://www.mailgun.com/ and it's

Just because it (installing and managing) is so painful, have you considered 3rd party services. I use http://www.mailgun.com/ http://www.mailgun.com/ and it's fantastic: their API is simple and works great, both for sending and receiving mail.