How to use the Exchange Migration Wizard to migrate mailboxes from an Exchange organization
This article was previously published under Q328871 On This PageSUMMARY This article describes the Microsoft Exchange
Migration Wizard that you can use to migrate mailboxes from Microsoft Exchange
Server 5.5, Exchange 2000 Server, and Exchange Server 2003. This article uses the term "Exchange migration" to describe the process of migrating mailboxes from one Exchange-based computer to an Exchange-based computer in a different organization by using the Exchange Server Migration Wizard or its command-line equivalent. This migration process is actually a copy process, where the source mailbox object is not deleted or changed in any way by the migration process. The Exchange Server Migration Wizard is designed to migrate mailboxes between separate Exchange organizations, and not in the same organization. The exception to this is the option to migrate mailboxes to personal storage (.pst) files instead of to an Exchange-based computer. However, it is more common to use the Microsoft Exchange Mailbox Merge program (Exmerge.exe) for this purpose. The option to migrate from cc:Mail, MSMail, Novell GroupWise, Lotus Notes and other programs has always been present in the Exchange 2000 Migration Wizard. The option to migrate mailboxes from Exchange Server 5.5 to Exchange 2000 Server first became available with Service Pack 1 (SP1) for Exchange 2000 Server. The option to migrate mailboxes from Exchange 2000 Server to Exchange 2000 Server first became available with Service Pack 2 (SP2) for Exchange 2000 Server. Usage of the Exchange 2000 Migration WizardThe Exchange Migration Wizard requires that you have a working trust relationship between the source and target domains. The migration process configures the original Microsoft Windows NT source user account as the account that is used to connect to the newly-migrated mailbox on the Exchange 2000 Server computer or the Exchange Server 2003 computer. This means that after the Migration Wizard completes successfully, the original source domain account (for example, a Windows NT account) that was used to connect to the mailbox on the original source Exchange server (for example, an Exchange 5.5 server) continues to be used to connect to the newly-migrated mailbox on the Exchange 2000 Server computer or the Exchange Server 2003 computer. The Migration Wizard does this by creating disabled user accounts on the target server (the Exchange computer where you migrate the mailboxes) that are associated to the source user accounts that connect to the mailboxes.Note Microsoft does not recommend that you turn on these turned off user accounts. The command-line usage of the Migration Wizard requires a control file, and a separate file that lists the accounts to be migrated. You can obtain examples and detailed command-line references from the Exchange 2000 SP2 Help file (Exadmin.chm). For additional information about migration and other strategies, see the "References" section of this article. Migration from Exchange Server 5.5When you run the Exchange Server Migration Wizard, select the Exchange Server 5.5 mailboxes that you want to import from the "Account Migration" page of the wizard. If the mailboxes do not currently exist as users or contacts in Active Directory, the Migration Wizard creates new Active Directory users. If an Exchange 5.5 mailbox already exists as a contact (for example, a contact that was created by the Inter-Organizational Connection Agreement) in Active Directory, the Migration Wizard matches the Exchange 5.5 mailbox with the contact and then converts the contact to an Active Directory user. After Migration Wizard creates new users, it migrates mailbox data to Exchange mailbox stores.You can choose from several migration strategies, depending on the needs of your organization. For example, you can set up an Active Directory Connector (ADC) before migration to update Active Directory and maintain co-existence between the Exchange 5.5 organization and the Exchange 2000 Server or the Exchange Server 2003 organization. This strategy is useful when users must have access to e-mail during the migration process. You can also use the Active Directory Migration Tool (ADMT) to retain any permissions that were assigned to the user accounts before migration. This strategy is useful if your organization is large, and you do not want to manually grant permissions after migration. Migration from Exchange 2000 ServerYou can use the Exchange 2000 Server SP2 version of the Migration Wizard to migrate mailboxes from servers in either an Exchange 5.5 or an Exchange 2000 organization to a separate Exchange 2000 or Exchange Server 2003 organization. When you migrate accounts from an Exchange 2000 organization by using the Exchange 2000 SP2 version of the Migration Wizard, turned off user accounts are created in the target folder. If you decide to turn on these user accounts, first use the ADM) to migrate the user accounts with security identifiers (SIDs).The Migration Wizard is not a full-featured account migration tool. However, the use of ADMT with the Migration Wizard has been tested and is a supported and recommended procedure for migrating user accounts with their corresponding mailboxes. The following two procedures describe the recommended ways that you can use the ADMT in conjunction with the Migration Wizard to import user accounts and their corresponding mailboxes:
What Exchange migration doesThe Migration Wizard performs the following tasks:
What Exchange migration does not doThe Migration Wizard is not designed to perform the following tasks:
Additional usage tips
Troubleshooting
REFERENCESFor additional information about related topics, click the following article numbers to view the articles in the Microsoft Knowledge Base:278017 (http://support.microsoft.com/kb/278017/)
Introduction to the enhanced Migration Wizard
307706 (http://support.microsoft.com/kb/307706/) Exchange 2000 Server Service Pack 2 migration enhancements
284980 (http://support.microsoft.com/kb/284980/) Options for source account clean-up after using the Exchange 2000 Server S284980 Migration Wizard
281496 (http://support.microsoft.com/kb/281496/) Permissions required to run the Exchange 2000 Server Migration Wizard
281563 (http://support.microsoft.com/kb/281563/) Exchange Server 5.5 to Exchange 2000 attribute mappings for the Migration Wizard
270655 (http://support.microsoft.com/kb/270655/) ADClean command line options
262201 (http://support.microsoft.com/kb/262201/) How to set up the Migration Wizard
For additional information about how to obtain the latest service pack for
Exchange 2000 Server, click the following article number to view the article in the Microsoft Knowledge Base:
301378 (http://support.microsoft.com/kb/301378/)
How to obtain the latest Exchange 2000 Server service pack
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
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