[Dovecot] Error configuring dovecot instance as proxy

Hi All

I follwed the steps in the below url to configure a dovecot proxy instance. http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy

I created a new file '95-test.conf' in /etc/dovecot/conf.d/ location. and put the below lines in that file. proxy=yes host=**** port=143 nopassword=yes

However I am getting the following when starting the serice. I tried 'proxy' and 'proxy_maybe' entries, and they both failed. doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-auth.conf line 11: Unknown setting: proxy

Could anyone help me how i can resolve this?

Thanks Bala