Install SSL wildcard certificate on SDP

Hi Forum,

I Have the following issue, We recently installed a wild card certificate on another server mainly the mail server.

Now we want to do the same for the SDP. However based on the tutorial it list 4 steps: http://www.manageengine.com/products/service-desk/help/adminguide/introduction/install-ssl.html

Step 1: Create a Keystore file

Step 2: Create .CSR (Certificate Signing Request) file

Step 3: Install your SSL Certificate

Step 4: Configuring the Server

The problem is we already have the certificate so we cannot request a new one for the same domain. It odes not make sense. So is there a way to export the certificate form the mail server and import it into the SDP server. Being it is a wildcard server it support any name in front of the domain line mail.contoso.com or sdp.contoso.com.

any help or suggestion will be greatly appreciated.

Thanks.