Problem accessing OWA in Exchange 2007

Asked By 0 points N/A Posted on -


When clients are trying to access OWA, I'm getting an irritating error in Exchange 2007. This picture shows the error, and they need to select Continue at all time they access their mailbox. 

I followed this article but at the final step I found this error message:

C073511D012122901AE8B1 was found but is not valid for usage with Exchange Server
r (reason: PublicKeyUnsupportedSize).
At line:1 char:27
+ Enable-ExchangeCertificate <<<< -thumbprint B613E8ED585F3FE026C073511D01
901AE8B1 -services "IIS,POP,IMAP"

Need your help. Thanks.

Answered By 0 points N/A #106176

Problem accessing OWA in Exchange 2007


Hi, is your certificate issued to webmail? Like Then that is NOT the same as webmail on its own. Therefore you will get certificate prompts.

What I can advise is: the only way to deal with this is to have a commercial SAN/UC certificate with the appropriate names in it. The self signed certificates are designed as markers, not for production use.

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