When your certificate is issued, VikingCloud will email a zip file that contains your certificate in the following formats:
You can also login to Control Center and view your issued certificates. When you click on a certificate and scroll to the bottom of the page, you can download the certificate zip folder.
You will need to copy your domain.cer file to the Exchange Server.
Using the Exchange Management Console, (Start > Programs > Microsoft Exchange 2010 > Exchange Management Console), click on "Manage Databases", and select "Server Configuration". Select your certificate by the friendly name from when you created your CSR. In actions, click on "Complete Pending Request". Browse to your certificate file and click "Open > Complete". Hit H5 to refresh the certificate and verify that it now says "False" under "Self Signed".
Go back to the Exchange Management Console and click the link to "Assign Services to Certificate". From the list, choose your server and select all the services that you want to enable your new certificate for, then click Next > Assign > Finish.