Sending mail error

hey,
i get this message when i want to send a mail

5.3.3 AUTH not available

c:/ruby/lib/ruby/1.8/net/smtp.rb:680:in check_response' c:/ruby/lib/ruby/1.8/net/smtp.rb:582:inauth_login’
c:/ruby/lib/ruby/1.8/net/smtp.rb:581:in critical' c:/ruby/lib/ruby/1.8/net/smtp.rb:581:inauth_login’
c:/ruby/lib/ruby/1.8/net/smtp.rb:571:in __send__' c:/ruby/lib/ruby/1.8/net/smtp.rb:571:inauthenticate’
c:/ruby/lib/ruby/1.8/net/smtp.rb:411:in do_start' c:/ruby/lib/ruby/1.8/net/smtp.rb:378:instart’
c:/ruby/lib/ruby/1.8/net/smtp.rb:316:in `start’

i have followed these instructions:
http://wiki.rubyonrails.com/rails/pages/HowToSendEmailsWithActionMailer

model notifier.rb
class Notifier < ActionMailer::Base

def signup_confirmation(user)

Email header info MUST be added here

@recipients = user.email
@from = “removed_email_address@domain.invalid”
@subject = “Action Required to Activate Account for Twodecode!”

Email body substitutions go here

@body[“first_name”] = user.first_name
@body[“last_name”] = user.last_name
end

end

the controller
def confirmation_mail
user = User.find(1)
Notifier::deliver_signup_confirmation(user)
end

signup_confirmation.rhtml
Dear <%= @first_name %> <%= @last_name %>,

Thanks for signing up with My Website!

Your account will allow you to do blah, blah, blah.

can anyone help me?

Thanks.
Nick

Your using AUTH, but your server doesn’t support AUTH.

http://www.faqs.org/rfcs/rfc2554.html


– Tom M.