I have a server running as both HUB and CAS. I am moving the CAS role to a separate server. Can I copy the 3rd party exchange certificate (the cert is from Entrust Certification Authority) from one server to another? If so, is the this the correct procedure: 1. export cert from server A 2. import cert into server B 3. remove cert from server A I am running Exchange 2007 SP2 rollup 4. Also Server A is windows 2003 sp2 standard and server B is windows 2008 ru2 enterprise. thank you

Hi, Regarding how to export and import certificate, you can refer to the following article: http://www.digicert.com/ssl-support/pfx-import-export-exchange-2007.htm If you would like use one certificate, the subject alter name of the certificate should includes all FQDN of these servers. A related article for your reference: Load Balancing Exchange 2007 Client Access Servers using Windows Network Load-Balancing Technology Part 3: Creating Certificates and Testing Client Services http://www.msexchange.org/articles_tutorials/exchange-server-2007/high-availability-recovery/load-balancing-exchange-2007-client-access-servers-windows-network-technology-part3.html Hope this helps. Thanks,