spfd vs postfix

Hi|

I'm using postfix 2.2.3
with perl-Mail-SPF-Query-1.999.1-1
and spfd (# $Id: spfd 141 2006-02-07 00:04:51Z julian $)

Then I did the following

$ echo  /usr/bin/spfd  --set-user nobody  --set-group nobody | at now
$ ps -ef  | grep spfd
nobody     20791 20790  0 14:43 ?        00:00:00 /usr/bin/spfd listening on TCP port 5970

$ vi  /etc/postfix/main.cf , I added the 'check_policy_service' at end of 
'smtpd_recipient_restrictions' section
smtpd_recipient_restrictions =
         ...cut...
        check_policy_service  inet:127.0.0.1:5970

$ postfix stop ; postfix start

$ tail  /var/log/messages
Mar 15 14:52:49 smtpext1 postfix/smtpd[12501]: warning: missing attribute action in input from 
127.0.0.1:5970
Mar 15 14:52:49 smtpext1 postfix/smtpd[12501]: warning: problem talking to server 127.0.0.1:5970: 
Success

Did I miss something ?

Thanks,
Eddy