The subject say it all. We've been successfully running OWA behind ISA 2006 with a free cert from Startcom but for other reasons we had to purchase a cert form a more widely trusted authority. I installed the wildcard cert on the exchange server and tested it internally and it worked fine. Exported the cert from exchange and installed it on the ISA box. Reconfigured the SSL listener to use the new cert but am getting an error about service principal name when trying to access OWA from outside the ISA server. I found several references that this did not work on ISA 2004 and earlier but is supported on 2006 but no info on what to troubleshoot or settings to check if it doesn't. Any suggestions greatly appreciated.
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