In Windows Exchange systems you may receive the following error message after the installation of a digital certificate.
“The certificate is invalid for exchange server usage”
- The SSL certificate cannot be verified to a trusted certificate authority.
- The SSL certificate that was installed is missing its intermediate CA certificate that helps chain the trust to the root certificate on that system.
You will have to manually install the correct intermediate CA certificate that goes with your SSL certificate product. Contact your Certificate Authority (CA) for this supplementary certificate.
Note: If you purchased your Standard SSL Certificate product from the following CA’s Symantec, GeoTrust, Thawte or RapidSSL you can find the links directly to your SSL certificate product HERE
Once you have retrieved your intermediate CA certificate file perform the following:
If you are unable to use these instructions for your server, Acmetek recommends that you contact either the vendor of your software or the organization that supports it.
For more information, please refer to Windows Support
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