I'm hoping someone can clear up some confusion I have on an SSL certificate issue. We're migrating from sbs 2008 to server 2012 standard and exchange 2013. Currently, we have an ssl cert from godaddy for companyweb.domain.com. That cert is good until 2015. I know I can export and import that cert into exchange 2012. Can I then just change the port forwards in my router to the new exchange 2013 server and be set to go? Do I need a new ssl for the new server? I'm hoping to continue using our current certificate until expiration, just not sure if I can, or exactly how to do it.