Forum: Ruby on Rails ActionMailer Problem

Hi,
I wanted to send an attachment in mail.
for testing , I have send png image attachement in mail. Mail delivery 
is
completely working but the attachment in that mail show file name as
"nonname"
what should i do??
My code is:

class SendMail < ActionMailer::Base
  default :from => "XXXX@gmail.com"

  def welcome
    attachments["adfd.txt"] = 
File.read("#{Rails.root}/public/images/f.txt")

     mail(:to => "XXX@gmail.com",
          :subject => "welcome mail").deliver
  end


end