[Gross] Question about gross and postfix

[Pascal Maes]

hello,

I have installed grossd to use it with postfix
my main.cf file look like :

# define the restriction classes
#
smtpd_restriction_classes =
     greylist_policy
     ...

# define the greylist_policy
#
greylist_policy = check_policy_service inet:127.0.0.1:5525

# Recipient restrictions
#
smtpd_recipient_restrictions =

reject_non_fqdn_recipient
     ...
     check_recipient_access hash:/etc/postfix/greylisting
     ...
     reject_rbl_client zen.dnsbl

where /etc/postfix/greylisting contains the users or domains which  
allow the greylisting

my.domain            greylist_policy
another.domain       greylist_policy

I can see that grossd is working as the logfile contains :
May 17 11:07:14 smtp-1 grossd: #46e0a940: a=greylist d=0 w=2  
c=118.136.19.250 s=dacuna at ugr.es r=dupont at dice.ucl.ac.be  
h=user-035a92fab2.firstmedia.com m=zen.dnsbl+2
but the message is not deferred as I see that it is rejected by the  
reject_rbl_client rule
May 17 11:07:14 smtp-1 postfix/smtpd[9005]: NOQUEUE: reject: RCPT from  
unknown[118.136.19.250]: 554 5.7.1 Service unavailable; Client host  
[118.136.19.250] blocked using zen.dnsbl; http://www.spamhaus.org/query/bl?ip=118.136.19.250 
; from=<dacuna at ugr.es> to=<dupont at dice.ucl.ac.be> proto=ESMTP  
helo=<user-035a92fab2.firstmedia.com>

If I try the gclient, I have
/usr/local/bin/gclient postfix dacuna at ugr.es dupont1 at dice.ucl.ac.be  
118.136.19.250 user-035a92fab2.firstmedia.com
action=defer_if_permit Please try again later.

Where is the error(s) ?
We are using postfix 2.5.1

Thanks
--
Pascal