I have been tasked by a client to secure up their email communications. They are running Exchange Server 2003 on Windows Server 2003. They have users access email via OWA, imap, pop, and smtp. I'm looking for instructions on how to create an SSL certificate using Server 2003 Certificate Authority and how to deply to the Exchange server. I'm also asking for any input on how to secure communication for imap, pop, and smtp. Any help would be greatly appreciated.