how to set smpt server for our rails applicaion

hi i am using technoweenie-restful-authentication plug-in for
authentication in my application. i want to send a activation link to
the user's mail-id.
for that i need to set the smpt server for our rails application, for
that i added the follwing code in config/environment.rb file

ActionMailer::Base.delivery_method:smpt
  ActionMailer::Base.smpt_settings = {
  :address => "localhost",
  :port => 25,
  :authentication=> :login,
  :user_name => "my_username",
  :password => "my_password"
  }

but when i try to run the server it gives the following errors

G:\my\MyMovies>ruby script/server
=> Booting Mongrel
=> Rails 2.3.3 application starting on http://0.0.0.0:3000
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/dependenci
es.rb:443:in `load_missing_constant': uninitialized constant
ActionMailer (NameE
rror)
        from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_suppo
rt/dependencies.rb:80:in `const_missing'
        from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_suppo
rt/dependencies.rb:92:in `const_missing'
        from G:/my/MyMovies/config/environment.rb:43
        from
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.3/lib/initializer.rb:111:i
n `run'
        from G:/my/MyMovies/config/environment.rb:9
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `ge
m_original_require'
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `re
quire'
        from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_suppo
rt/dependencies.rb:156:in `require'
        from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_suppo
rt/dependencies.rb:521:in `new_constants_in'
        from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_suppo
rt/dependencies.rb:156:in `require'
        from
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.3/lib/commands/server.rb:8
4
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `ge
m_original_require'
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `re
quire'
        from script/server:3

any anyone give me the procedure to add smpt server to my rails
application
is there any any code i need to add in my application to configure my
application to the smpt server, if it is please tell me the procedure
and which code i need to add.

regards,
rajendra

Did you include these...

ActionMailer::Base.raise_delivery_errors = true
ActionMailer::Base.perform_deliveries = true
ActionMailer::Base.delivery_method = :smtp

hi i am using technoweenie-restful-authentication plug-in for
authentication in my application. i want to send a activation link to
the user's mail-id.
for that i need to set the smpt server for our rails application, for
that i added the follwing code in config/environment.rb file

It looks like you've got this towards the top of environment.rb, i.e
before the bit that runs the initializer: you don't want this, the
initializer is the thing that loads rails, so before it none of the
rails framework (ActiveRecord, ActionMailer etc.) is loaded. You've
also got a few typos in there.

Fred

Don't use environment.rb, use instead: "config/initializers/
action_mailer.rb". Set it to read:

ActionMailer::Base.delivery_method = :smtp

ActionMailer::Base.smtp_settings = {
   :address => "localhost",
   :port => 25,
   :authentication=> :login,
   :user_name => "my_username",
   :password => "my_password"
   }

NOTE 1: delivery_method = :smtp
NOTE 2: smtp not smpt -- two places

What's the rational behind using initializers instead of environment files?
We are (and have been for some time) setting the smtp options in the environment files with great success.

Cheers
Simon

What's the rational behind using initializers instead of environment files?
We are (and have been for some time) setting the smtp options in the
environment files with great success.

That rather than having environment.rb become a dumping ground you
have a descriptively named set of files. Another incentive is that
initializers run before your models are loaded (in production mode)
whereas something at the bottom of environment.rb runs afterwards
which can sometimes be problematic.

Fred