akismet – no effect

I am using Rails 2.2.2 and Rakismet 0.3.5

I am in the process of implementing Rakismet in my rails application,

I am always getting the response as ‘false’ for @comment.spam? even though i submit the @comment as spam (ie, @comment.spam!)

I have tried debugger in plugin itself,

So i can sure that my key and url is valid ( in plugin -> rakismet -> lib -> rakismet.rb -> self.valid_key => ‘valid’)

@comment.spam? response is ‘false’
[_, response] => [#<Net::HTTPOK 200 OK readbody=true>, ‘false’]

@comment.spam! response is “Thanks for making the web a better place.”
Rakismet::Base.akismet_call(‘submit-spam’, akismet_data) => [#<Net::HTTPOK 200 OK readbody=true>, “Thanks for making the web a better place.”])

@comment.spam? response is ‘false’
[_, response] => [#<Net::HTTPOK 200 OK readbody=true>, ‘false’]

Where i am doing the mistake?

Any one can expalin me?

Thanks in advance…