postfwd is not called by postfix

[hmfireball]

Hi,

I have installed postfwd following instructions at postfwd.org
Postfwd is started and listening, but it seems that Postfix never calls it as I see nothing in logs.

My setting in main.cf is:

smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service inet:127.0.0.1:10040

What am I missing?
If at least I could see something in logs.

Thanks.