title: Rails - using multiple email providers in single app
body: <p>Anyway I can use multiple email providers within the same Rails 3 app ?</p>
  
  <p>Context
  1. Im using postmark for sending out mails currently (using delayed job)
  2. Our app also needs to send out some mass emails - for which we will be using a separate provider. </p>
  
  <p>Now I dont want to separate out and create a new app for the mass emailing part. How can I use/choose different email providers at the point of sending email ?</p>
  
  <p>Thanks in advance</p>