I\'ve noticed some of my actions (on a development environment) take a little while to load up as an email they require an email notification (through Google\'s servers). D
I've just released a gem, Mailhopper, that queues email in your database for asynchronous sending plus optional archiving. A second gem, DelayedMailhopper, queues and sends these emails using DelayedJob.
I developed this approach to be more robust than DelayedJob alone, as explained here:
http://www.cerebris.com/blog/2011/09/07/tame-rails-email-dragons-with-mailhopper/
Offloading potentially long-running tasks such as sending emails in to the background is a good idea to improve the responsiveness of your application, albeit by sacrificing the simplicity of your application a little.
One popular way to do this (which I have used with great success) is using Delayed Job. The README file contains examples of how simple it is to send email in the background -- basically you just use the send_later
method.
Here's a link to another good tutorial:
http://railstips.org/2008/11/19/delayed-gratification-with-rails