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Migrate a POP3 server to Exchange 2007 without any down time

I need to migrate an existing POP3 mail server to a brand new Exchange Server 2007 server without any down time. The users should be able to access their e-mail from the old POP3 server if their Outlook settings point to that server, and when I get to their computer and change their settings to point to the new Exchange Server 2007, they should be able to access all their mail from the new Exchange 2007 server. When I have finally cut over all 200 users, I should be able to simply shut the POP3 server off. Is this possible, and if so, how would I accomplish it?
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conner172
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conner172
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artisticsoulCommented:
Assumptions, you have the Exchange server setup probably using the typical setup and It is for the same domain that the POP server is setup for.
Configure a send connector that forwards all email to the existing SMTP mail server.
Setup your users with an Exchange mailbox one by one as you move them from the POP server.

Depending on your domain configuration you may need temporarily setup a temp domain in your email address policy and the recieve connector. Then for the  real domain you will need to setup the recieve connector as a shared environment.
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conner172Author Commented:
I don't understand what you mean here:
"Depending on your domain configuration you may need temporarily setup a temp domain in your email address policy and the recieve connector. Then for the  real domain you will need to setup the recieve connector as a shared environment. "
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artisticsoulCommented:
Maybe this will explain better, snd give you the commands you need.
http://technet.microsoft.com/en-us/library/bb676395(EXCHG.80).aspx

Post back if it does not make sense, or you have errors, I just setup the same thing your doing.
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