diff --git a/exec/load/ircd/config.js b/exec/load/ircd/config.js
index 02a92f9d9f9370450a111e66ef066fe6be7f880e..22692429a57a156c071cc723c1ec965ca8b24c2b 100644
--- a/exec/load/ircd/config.js
+++ b/exec/load/ircd/config.js
@@ -548,7 +548,7 @@ function ini_RBL(arg, ini) {
 		));
 		return;
 	}
-	RBL.push(ini.Hostname);
+	RBL.push(new RBL_Config_Object(ini.Hostname, ini.GoodResponses, ini.BadResponses));
 }
 
 function load_config_defaults() {
@@ -865,3 +865,9 @@ function ZLine(ipmask,reason) {
 	this.ipmask = ipmask;
 	this.reason = reason;
 }
+
+function RBL_Config_Object(hostname, good, bad) {
+	this.hostname = hostname;
+	this.good = this.good ? good.split(",") : "";
+	this.bad = this.bad ? bad.split(",") : "";
+}
diff --git a/exec/load/ircd/core.js b/exec/load/ircd/core.js
index 783b2fb0301eff0f3ce4fd0400e69648af03d701..81c5cf67544a088b4974b1c26852665cdcffdfe5 100644
--- a/exec/load/ircd/core.js
+++ b/exec/load/ircd/core.js
@@ -2803,6 +2803,27 @@ function IRCClient_finalize_server_connect(states) {
 	this.synchronize();
 }
 
+function RBL_Listed_According_to_Config(rbl_object, dns_reply) {
+	var i;
+
+	if (rbl_object.good) {
+		for (i in rbl_object.good) {
+			if (dns_reply == rbl_object.good[i])
+				return false;
+		}
+	} else if (rbl_object.bad) {
+		for (i in rbl_object.bad) {
+			if (dns_reply == rbl_object.bad[i])
+				return true;
+		}
+	} else if (dns_reply) {
+		return true;
+	}
+
+	/* not listed by default */
+	return false;
+}
+
 function accept_new_socket() {
 	var unreg_obj, id, sock, num_rbls, count, i, dnsbl_result;
 
@@ -2860,8 +2881,8 @@ function accept_new_socket() {
 				count,
 				num_rbls
 			));
-			dnsbl_result = check_dnsbl(sock.remote_ip_address, RBL[i]);
-			if (dnsbl_result) {
+			dnsbl_result = check_dnsbl(sock.remote_ip_address, RBL[i].hostname);
+			if (RBL_Listed_According_to_Config(RBL[i], dnsbl_result)) {
 				sock.send(format(
 					":%s 463 * :Your IP address is on an RBL.  Connection denied.\r\n",
 					ServerName
@@ -2870,7 +2891,7 @@ function accept_new_socket() {
 					"DNS-Blocked IP address %s resolves to %s from RBL %s",
 					sock.remote_ip_address,
 					dnsbl_result,
-					RBL[i]
+					RBL[i].hostname
 				));
 				sock.close();
 				return false;