From 5c631c922ae329bdca994d0a2967eee80d830cd3 Mon Sep 17 00:00:00 2001
From: Andrew Lewis <nerf@judo.za.org>
Date: Fri, 7 Jul 2017 10:25:38 +0200
Subject: [PATCH] [Minor] RBL: don't register duplicate monitoring

---
 src/plugins/lua/rbl.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/plugins/lua/rbl.lua b/src/plugins/lua/rbl.lua
index f5d8d1bf8..a6b54539e 100644
--- a/src/plugins/lua/rbl.lua
+++ b/src/plugins/lua/rbl.lua
@@ -456,6 +456,7 @@ local id = rspamd_config:register_symbol({
   flags = 'empty,nice'
 })
 
+local is_monitored = {}
 for key,rbl in pairs(opts['rbls']) do
   (function()
     if rbl['disabled'] then return end
@@ -545,7 +546,8 @@ for key,rbl in pairs(opts['rbls']) do
       end
     end
     if rbl['rbl'] then
-      if not rbl['disable_monitoring'] and not rbl['is_whitelist'] then
+      if not rbl['disable_monitoring'] and not rbl['is_whitelist'] and not is_monitored[rbl['rbl']] then
+        is_monitored[rbl['rbl']] = true
         rbl.monitored = rspamd_config:register_monitored(rbl['rbl'], 'dns',
           {
             rcode = 'nxdomain',
-- 
2.39.5