I have a commercial Comodo SSL cert on my Zimbra 8.0 server set to expire soon. My question is as I run through the Admin UI to renew the cert, it says I have an existing CSR and gives me a checkbox option to replace it. Now since its the same server, hostname, ip, same software version, etc. since I installed the cert originally (which a royal pain), can I just reuse the same CSR and send it over to Comodo to generate the renewal cert? The information should all be the same to it should just be that simple, right?