How to send automated emails in Ruby on Rails (with Mailgun)

Instead of managing your own email server try Mailgun for sending (and receiving) emails within your app.

They have great logs and analytics.

In short, sign up for Mailgun, set your Action Mailer settings to Mailgun's SMTP settings and you're good to go. It's that easy.

http://www.leemunroe.com/send-automated-email-ruby-rails-mailgun/