I just started working for a company that had used an email provider to access their work email from home. They now want to discontinue this service and manage their own access to this email. Currently using Windows 2000 with Exchange 2000 for email server. There are 3 servers, a Citrix server, W2000 application server and a file server. A Linux server acts as the firewall. There is also a Cisco router but only used for connectivity. The Exchange server was set up on the application server as was the DNS server. I don’t agree with the consultant they had as to the design of adding external mail access. He feels it is best to just use the Citrix server and let them dial into their pc, but XP would be required on all pc’s and this is not feasible at this time. The company does not want to use this method and would prefer the internet access. I was told the the only way is to add another Exchange server and have the IIS on that server also, and this would be setup in front of the firewall. Is this the cheapest and best way to do this?