I've got a Digicert 3rd party SAN certificate that I've been using with E2007. I've recently introduced 2 E2010 CAS/Hub servers into the Exchange Org and have successfully imported the same certificate into the two new servers. Everything seems to be functioning ok (including OWA), but I see the following error regarding the certificate in the EMC:
"The certificate is invalid for Exchange Server usage"
If I use the Get-ExchangeCertificate cmdlet on the E2010 servers it shows the status as "Invalid". Interestingly, it also shows the RootCAType as "unkown", whereas on the E2007 server it shows the RootCAType as "ThirdParty".
The certificate is configured for the following services on both the E2007 and E2010 servers:
Services : IMAP, POP, IIS, SMTP
What can I do to resolve the error?
Alexei