That is quite simple. You need them to add to the "smtpd_recipient_restrictions" in your main.cf file.
All of mien looks like that:
Code:
smtpd_recipient_restrictions =
reject_invalid_hostname,
permit_sasl_authenticated,
reject_non_fqdn_hostname,
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unknown_sender_domain,
reject_unknown_recipient_domain,
permit_mynetworks,
# permit_sasl_authenticated,
reject_unauth_destination,
check_recipient_access hash:/etc/postfix/recipient_checks,
check_recipient_access pcre:/etc/postfix/recipient_checks.pcre,
check_helo_access hash:/etc/postfix/helo_checks,
check_sender_access hash:/etc/postfix/sender_checks,
check_client_access hash:/etc/postfix/client_checks,
check_client_access pcre:/etc/postfix/client_checks.pcre,
reject_rbl_client relays.ordb.org,
reject_rbl_client opm.blitzed.org,
reject_rbl_client list.dsbl.org,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client dul.dnsbl.sorbs.net,
reject_rhsbl_client blackhole.securitysage.com,
reject_rhsbl_sender blackhole.securitysage.com,
reject_rbl_client relays.ordb.org,
reject_rbl_client blackholes.easynet.nl,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client proxies.blackholes.wirehub.net,
reject_rbl_client bl.spamcop.net,
reject_rbl_client dnsbl.njabl.org,
permit
As you can see in the first part I do some other checks and the RBLs start with that here:
Quote:
reject_rbl_client relays.ordb.org,
reject_rbl_client opm.blitzed.org,
reject_rbl_client list.dsbl.org,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client dul.dnsbl.sorbs.net,
reject_rhsbl_client blackhole.securitysage.com,
reject_rhsbl_sender blackhole.securitysage.com,
reject_rbl_client relays.ordb.org,
reject_rbl_client blackholes.easynet.nl,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client proxies.blackholes.wirehub.net,
reject_rbl_client bl.spamcop.net,
reject_rbl_client dnsbl.njabl.org,
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Just add those rbls that you want to use
After you have altered the main.cf restart postfix ^^