add NiX Spam RBL (http://www.dnsbl.manitu.net/)

conf/modules.d/rbl.conf

@@ -125,6 +125,12 @@ rbl {
                 RBL_VIRUSFREE_BOTNET = "127.0.0.2";
             }
         }
+
+	nixspam {
+            symbol = "RBL_NIXSPAM";
+            rbl = "ix.dnsbl.manitu.net";
+            ipv6 = true;
+        }
     }
 
     .include(try=true,priority=5) "${DBDIR}/dynamic/rbl.conf"

conf/scores.d/rbl_group.conf

@@ -67,7 +67,7 @@ symbols = {
     }
     "RBL_SPAMHAUS_DROP" {
         weight = 7.0;
-        description = "From address is listed in ZEN DROP bl";
+        description = "From address is listed in ZEN DROP BL";
     }
     "RECEIVED_SPAMHAUS_SBL" {
         weight = 1.0;
@@ -91,7 +91,7 @@ symbols = {
     }
     "RECEIVED_SPAMHAUS_DROP" {
         weight = 6.0;
-        description = "Received address is listed in ZEN DROP bl";
+        description = "Received address is listed in ZEN DROP BL";
         one_shot = true;
     }
 
@@ -142,16 +142,21 @@ symbols = {
 
     "RBL_SEM" {
         weight = 1.0;
-        description = "Address is listed in Spameatingmonkey RBL";
+        description = "From address is listed in Spameatingmonkey RBL";
     }
 
     "RBL_SEM_IPV6" {
         weight = 1.0;
-        description = "Address is listed in Spameatingmonkey RBL (ipv6)";
+        description = "From address is listed in Spameatingmonkey RBL (IPv6)";
     }
 
     "RBL_VIRUSFREE_BOTNET" {
         weight = 2.0;
-        description = "Source IP is listed in virusfree.cz BL";
+        description = "From address is listed in virusfree.cz BL";
+    }
+
+    "RBL_NIXSPAM" {
+        weight = 4.0;
+        description = "From address is listed in NiX Spam (http://www.dnsbl.manitu.net/)";
     }
 }