I am having trouble sending email w/ attachments as described in the following how-to article: http://wiki.rubyonrails.com/rails/show/HowToSendEmailsWithActionMailer I can send basic emails successfully but the discussion regarding attachments is giving me trouble. mail.set_content_type(''multipart'', blah blah) mail.parts << my_attachment Questions: 1) Am I setting the content type for the attachment I am about to append? 2) What is "my_attachment" supposed to be, a file object? Ultimately the script is failing at this portion of code with everything I have tried so far: Mailer::deliver(mail) With the following error message: undefined method `accept'' for <File:/path/to/file> Any help would be much appreciated.