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I notice sometimes when some of my users try to log into our network via the VPN and they try to connect to our MS Exchange Server via there desktop, it says MS Exchange Server not avail. Now of course I know the server is up internally but this only happens with outside VPN users...
"All the world's indeed a stage and we are merely players..."
when checking mail through the vpn externally, when the login errors occur, are users able to gain access to other lan places, ex:printing, shared folders, or client programs? or is this just an exchange issue?
How have you configured Exchange? What type of policies are in play? Have users been able to access Exchange externally in the past? Is your Router Blocking essential Ports. Have you run the MBSA from microsoft. That is the Microsoft Baseline Security Analasys tool to determine potential holes?