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Howto disconnect all outlook clients from the Exchange server using the Firewall

wsc-it asked
Last Modified: 2012-05-12
We are migrating to Exchange 2010 from Exchange 2003

As you may know you initiate a mailbox migration from the 2010 server, in order for this to be successful the user MUST have closed down outlook (closing their connection to the old exchange server)

I want to know the ports used in outlook in order to connect to exchange so i can temporarily block these using the windows firewall which should disconnect all outlook clients that are still connected

I do however need the old server running still on the network in order for mailbox migration to work

I could initiate a remote shutdown of all PCs but this sometimes fails, so i'm hoping it can be d one this way

Thanks in advance
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