RBLs - more hassle than benefit

as I wrote earlier Google mail servers got blacklisted , but it was only the beginning. Now I got complains from the client that hotmail.com users also get mail bounced because of this list . So, as running after each and every IP blocked by this list endlessly wasn't the best use of my time, I disabled this specific RBL in eSafe. So far no complains neither about bounced mail nor increased spam. The screenshot below shows where to find this RBL in the eSafe. How to disable specific RBL server