--- a/mod_register_dnsbl/mod_register_dnsbl.lua	Thu Jun 09 11:32:23 2016 +0200
+++ b/mod_register_dnsbl/mod_register_dnsbl.lua	Thu Jun 09 11:32:52 2016 +0200
@@ -18,7 +18,7 @@
 		local log = session.log;
 		adns.lookup(function (reply)
 			if reply and reply[1] then
-				log("warn", "Registration from IP %s found in RBL", ip);
+				log("warn", "Account %s@%s registered from IP %s found in RBL (%s)", event.username, event.host or module.host, ip, reply[1].a);
 			end
 		end, rbl_ip);
 	end