qmail + RBL

[eagle_cz]

im having hard times with rblsmtpd
there is
#QMAIL_SMTP_PRE="${QMAIL_SMTP_PRE} rblsmtpd -r RBL-SERVER"
in conf file
if i will change it to
QMAIL_SMTP_PRE="${QMAIL_SMTP_PRE} rblsmtpd -r relays.ordb.org"

and add
172.20.:allow,RELAYCLIENT="",RBLSMTPD="",QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue.pl"
to my tcp.smtp file and compile it
i do not see any single line in any log file nor test work

what could be wrong ?
i have qmail and everything related from poratge tree