For more information see Downloading Your SSL Certificate.
Exchange server 2010 requires a Multiple Domain (UCC) Certificate to run all services securely. If you have problems, please see Test your SSL's configuration.
Renewal CSR Creation from the Exchange Management Console Go to and enter the DNS name of the site you are securing to test your certificate (e.g.
or mail.yourdomain.com) to verify the installation is correct and the expiration date shows the renewed certificate.
If you no longer want to use a certificate for a specific service, you need to assign another certificate to the service, and then remove the certificate that you don't want to use.
If you’re using a different CA this time around you should just generate a new CSR for a brand new certificate instead.
Sometimes we just need to switch to a different CA for some reason such as technical issues or customer service.
For an incredibly simple way to renew your SSL Certificate expiring Exchange 2010 SSL Certificate renewal using the Digi Cert Utility page.
You can also find information on checking your certificate installation and repairing common certificate errors as well.