When you run the Microsoft Exchange Server Migration Wizard to move mailbox data to your Microsoft Exchange Server 2003 computer, the migration process may take a very long time. In this scenario, the migration process may appear to stop responding (hang) for up to one hour when the Migration Wizard tries to migrate data from a particular mailbox. Additionally, the following event may appear one or more times in the Application log in Event Viewer:
Event Type: Error
Event Source: MSExchangeMig
Event Category: None
Event ID: 13003
Description:Failed to logon to the target mailbox with the address 'x500:/o=organization/ou=organizationalUnit/cn=Recipients/cn=USERNAME'.
For more information about the latest service pack for Exchange Server 2003, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain the latest service packs for Exchange Server 2003
This behavior occurs if the Migration Wizard cannot log on to one or more mailboxes successfully. If the Migration Wizard cannot log on to a mailbox, the Migration Wizard retries the logon attempt for 60 minutes before it continues to the next mailbox. For example, if the Migration Wizard cannot log on to 10 mailboxes during the migration process, you may experience a delay of up to 10 hours before the mailbox migration process is completed.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note
If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note
The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
No prerequisites are required to install this update.
You do not have to restart your computer after you apply this update.
Update replacement information
This hotfix does not replace any other update.
The English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone
tab in the Date and Time tool in Control Panel.
Date Time Version Size File name -------------------------------------------------------------- 23-Jul-2004 22:22 6.5.6980.97 71,168 Mailmig.exe 23-Jul-2004 22:22 6.5.6980.97 4,396,032 Mlmig32.dll
Update installation information
After you install this update, you can configure both the following behaviors for the Migration Wizard:
- The maximum number of times that the Migration Wizard tries to log on to a mailbox. The following registry subkey is available to configure this behavior:
Value name: MaxMailboxLogonRetries
Value type: REG_DWORD
Value data: numberOfRetriesPerMailbox
- The time in seconds that the Migration Wizard waits before it retries an unsuccessful mailbox logon attempt. The following registry subkey is available to configure this behavior:
Value name: MailboxLogonRetryInterval
Value type: REG_DWORD
Value data: numberOfSeconds
By default, if you do not configure either of these registry subkeys, the Migration Wizard tries to log on to a mailbox 60 times, and there is an interval of 60 seconds between each logon attempt.
Additionally, this update includes the following Migration Wizard-specific event log messages:Message 1
Exchange Migration Wizard has been unable to open target mailbox 'MAILBOXNAME' after XX attempts. Wizard will continue to open mailbox every YY second(s) for another ZZ attempts before reporting failure.Message 2
The maximum number of attempts made by Migration Wizard to open a mailbox is being overwritten by registry setting SOFTWARE\\Microsoft\\Exchange\\MSExchangeMailMig\\MaxMailboxLogonRetries.The Migration Wizard will now try to open a mailbox for XX attempts before reporting failure.Message 3
The retry interval between attempts made by Migration Wizard to open a mailbox is being overwritten by registry setting SOFTWARE\\Microsoft\\Exchange\\MSExchangeMailMig\\MailboxLogonRetryInterval.The Migration Wizard will now try to open a mailbox every XX second(s).