lifo/docrails — pull request #117 by Alamoz (2012-10-05 21:15:41+00:00)
Title: Clarification of config.action_mailer.raise_delivery_errors = true

Setting config.action_mailer.raise_delivery_errors = true only raises email delivery errors if the email server is configured a certain way. You will have to consult the documentation for your particular email server. Refer to discussion at rails/rails#7473