Dehnert James Sr wrote:
The performance issues are a) slow response on the lan, and b) unusable low response from remote users. This is always with IMAP, of we switch
As a possible aide, have your user(s) run TCPView (http://www.microsoft.com/technet/sysinternals/Networking/TcpView.mspx) in a corner of their screen before starting Outlook, then when Outlook is launched to watch the view for "red bars" (which indicate a client attempt to do something and getting blocked/denied).
I had a problem with setting up Outlook + Exchange + self-signed SSL + Remote awhile back; using TCPView helped show me that even though I was telling Outlook to use SSL/HTTP for the connection, the initial Outlook setup was still trying to use NetBIOS calls for the server, which showed up in TCPView very clearly.
Perhaps the util will help you identify something Outlook is doing that it's not supposed to, as was my case.
hth, -te
-- Troy Engel | Systems Engineer Fluid Inc. | http://www.fluid.com