In AD, move the server object to the desired OU. Hold off on that for now. I obtained the fix from Microsoft, and you should do the same, as it fixes some nasties that may interfere with OWA. If you have installed any AV software on the new server, stop all AV-related services now, or you may experience a failed Exchange installation as I did. Download the latest copy of the Exchange Server Deployment Tools, version To begin the Exchange Server install on your new server, run Exdeploy.
Run through the entire checklist and perform all the steps and tests. Install all the Exchange components unless you have a compelling need to do otherwise. When the install is completed, install Exchange Server Service Pack 1.
When SP1 is completed, run the Exchange System Manager from the Windows Server system, and you will see your new server listed in the Exchange organization, as well as your old server. At this point, you now have an Exchange system running in your existing Exchange organization. Microsoft has done a good job of allowing the two versions to coexist. Before proceeding with your migration, there are a number of important tasks to consider at this stage. This is a good opportunity to spend some time reviewing your new Exchange server.
Even if you spent time learning the new product in a lab environment as you should have , exploring the system now before proceeding makes sense. This is a good time to uninstall the Exchange version of the ESM remote management tools using the Exchange Server CD, run Setup, choose Remove on any management workstations and install the new Exchange ESM, which can be used to manage both versions of Exchange server.
As you test message routing, you will find that any email coming into your organization from the outside will be automatically routed to the appropriate Exchange server where the mailbox resides. My test mailbox on the new server could send and receive mail, no problem. I could also access the mailbox with Outlook or OWA from within the organization, no problem. However, I was unable to access mailboxes on the new server from outside the organization. In my configuration, an ISA Server system acts as the firewall, where web and server publishing rules exist to redirect incoming traffic to the old mail server.
There was no simple way I could find to allow simultaneous access to both the old and the new servers. All incoming mail-related traffic was directed to the old server. This limitation affected the rest of the migration as you will see. MS Mail connector. These are no longer supported with Exchange and need to be removed.
Note : If you keep one Exchange server you may retain this functionality. Finally check the event viewers on your existing Exchange server, and domain controllers to make sure everything is running cleanly. However, I was unable to access mailboxes on the new server from outside the organization. In my configuration, an ISA Server system acts as the firewall, where web and server publishing rules exist to redirect incoming traffic to the old mail server. There was no simple way I could find to allow simultaneous access to both the old and the new servers.
All incoming mail-related traffic was directed to the old server. This limitation affected the rest of the migration as you will see. Note: There is a way to have multiple Exchange servers, both and , behind a firewall, whereby mail is automatically directed to the appropriate server.
Note: For a front end server to make any sense, a minimum of three servers would be needed: the front end server itself, and at least two Exchange servers, to which the front end server would route messages, based on the mailboxes homed on each. In our migration scenario, one could have a front end server routing mail to the old Exchange server and the new Exchange server.
As mailboxes are moved from the old to the new server, the front end server would route messages to the correct place. Even though cutover migration supports moving up to mailboxes, due to length of time it takes to create and migrate users, it is more reasonable to migrate users or less.
If the mailboxes you're migrating contain a large amount of data, you can also use the Import service to import PST files to Microsoft or Office You can use the Microsoft or Office Import Service to either ship the files or to import them across the network. You can search for partners on the Microsoft solution providers page.
If your source system is Exchange , Exchange , or Exchange Server , consider the following options. Even though cutover migration support moving up to mailboxes, due to length of time it takes to create and migrate users, it is more reasonable to migrate users or less. You can use the Import Service to either ship the files or to import them across the network. IMAP migration in the Microsoft admin center.
You can also hire a partner to help you migrate your email data. Were these instructions helpful? If so, please let us know at the bottom of this topic. If they weren't, and you're still having trouble deciding on a migration strategy, tell us what source email system you want to migrate from and we'll use your feedback to improve our content.
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