Plesk Qmail logs

Plesk Qmail logs
tail -f /usr/local/psa/var/log/maillog
tail -f /var/log/messages
/var/log/mail.info

You can edit the /etc/xinetd.d/smtp_psa file and add -a to exclude the IPs which you dont want to be blocked by the RBL lists:
e.g:
server_args = -Rt0 /usr/sbin/rblsmtpd -a 59.93.244.0 -r relays.ordb.org ..