Quick ActionMailer notification

SystemNotifier.deliver_notification "My subject", "My optional message"

# app/mailers/system_mailer.rb
def notification(subject, message=nil)
  @recipients     = "sysadmin@example.com"
  @from           = "sysadmin@example.com"
  @sent_on        = Time.now
  @subject        = subject
  @body[:message] = message
end

# app/mailers/system_mailer/notification.html.erb
<%= @message %>