This is a topic that has come up a few times. There were even a couple of tickets about this. I''ve written up a howto on the wiki that describes how to use URL helpers with ActionMailer, with very little effort: http://wiki.rubyonrails.com/rails/show/ HowtoUseUrlHelpersWithActionMailer Note that this only works if your mailers are always called from within an HTTP request. If you are using them in any other way, you''ll still need to build your URL''s manually. - Jamis