DNS Tester - leaktest for Kerio 2.1.5 This is one test that fails under Kerio 2.1.5. If you disable the DNS rule then it fails so it should be possible to tighten it up. The only way I can see is to set a DNS rule for each program that is allowed access, but this seems over the top and there should be a simpler way to do it. Any suggestions please. Another thing is how relevant is this test to being a real threat?