http://blogs.technet.com/b/isablog/archive/2012/04/24/another-behavior-of-the-test-rule-button-in-threat-management-gateway-2010.aspx&#160; Introduction: Recently, I worked on a case where we were publishing Exchange CAS (Client Access Servers) servers on TMG. We were seeing some unexpected behavior while using KCD (Kerberos Constrained Delegation) as the Authentication Delegationen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/isablog/archive/2012/04/24/another-behavior-of-the-test-rule-button-in-threat-management-gateway-2010.aspx#3494648Thu, 26 Apr 2012 08:24:59 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3494648Jan-André Tiedemann<p>This is exactly what i&#39;m seing in my tmg Environment - version 7.0.9193.515. </p> <p>Good to know, thanks !</p> <p>Jan</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3494648" width="1" height="1">http://blogs.technet.com/b/isablog/archive/2012/04/24/another-behavior-of-the-test-rule-button-in-threat-management-gateway-2010.aspx#3494177Tue, 24 Apr 2012 20:45:24 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3494177Agentsmith73<p>Hello TMG-Support-Team,</p> <p>i recently recognized this behavior while troubleshooting a setup of a colleagues Testlab-Setup. Could it be that if FF-TMG-FW-Svc runs as a Domain-Account (&gt;=SP2) and the KCD is configured ONLY for the domain account and not for the TMG-Computer-Account (or maybe even the User-Account because that´s the context the MMC runs in ?!) would be an explenation ?</p> <p>wbr</p> <p>Robert aka AgentSmith73</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3494177" width="1" height="1">