"In my development environment, it was almost trivial to send
the E-mails via sendmail; however, it was frustrating to get SMTP
to work with MediaTemple.net. After several hours of trial and
error and searching various resources I was able to get everything
working. This article will document the entire process, from
setting up your Ruby on Rails (RoR) container to sending the E-mail
within your RoR applications..."