Over the past few years we have been running Outlook 2003/2007 via RPC over HTTP. We have been using a self-signed certitifcate successfully. I recently obtained a cert from Network Solutions. Since then the remtoe Outlook clients can no longer connect to the Exchange Server (Exch 2003 SP1). What is the best practice to move from a self signed cert to a 3rd party cert? Thank you for any assistance.