Our company has an old Nt 4.0 server running Small Business Server 4.5 with Exchange 5.5 housing 50 mailboxes. This is using the Microsoft exchange pop connector to go to our ISP and pull down all new mail and then the exchange 5.5 server send the new mail to the clients. We have just bought a brand new dual processor server with Raid 5. I planned on Installing Exchange 2000 on the new server and using it as our new mail server and get away from using pop connector and make it a true email server. I am also planning on using owa for the remote clients. I have ran into a problem in that Small business server is not allowing itself to be joined to a new domain or allow any trust relationships with the new server. I wanted to use the forestprep switch when installing exchange 2000 on the new server but the old server will not allow the new server to connect and export the information. So my question is, Is there a way to Install exchange 2000 on the new Win2k server and just import all of the clients mailboxes from the exchsrv directory on the old server? I also have all of the clients' mailboxes saved to their local hard drives as PST files but I have not seen a way to just import PSt files in exchange 2000. Thank you very much for your assistance and I apologize for writing so much.