thoughtbot/suspenders — pull request #145 by croaky (2013-01-24 06:59:14+00:00)
Title: Update staging and production email delivery

* Use the Mail gem's interceptor feature.
* Separate SMTP from intercepting responsibilities.
* Set up SMTP for production and staging.

http://robots.thoughtbot.com/post/40822987615/delivering-all-email-from-staging-to-a-group-email