XFOR: MS Mail Migration Fails With EventID 7017 (186742)

   EventID: 7017
   Source: MSExchangeMig
   Type: Error
   Category: None
   Description:

   Could not log onto the Message Store for Account: <username>
				

WORKAROUND

When performing a two-step migration from MS Mail to Exchange Server while the user already has an existing Exchange Server mailbox, the following steps need to be taken:

1. Using a text editor or Excel, edit the Mode field in the .csv file so that the field is blank. This, in effect, performs an Update function.
2. Edit the Common-Name field in the .csv file so that the name matches the Directory Name for the existing mailbox. (Usually the alias name is the directory name; checking Raw Mode Properties will confirm.)
   
   WARNING: Using the raw mode of the Exchange Server Administrator program (admin/r) incorrectly can cause serious problems that may require you to reinstall Microsoft Windows NT Server and/or Microsoft Exchange Server. Microsoft cannot guarantee that problems resulting from the incorrect use of raw mode can be solved. Use raw mode at your own risk.
   
   You can check the Raw Properties of a mailbox by starting the Microsoft Exchange Administrator program in Raw Mode. To do this:
   
   
   1. Start the Microsoft Exchange Server Administrator program in raw mode by typing the following at a command prompt:

      admin/r

   2. Select the mailbox and from the File menu, click Raw Properties.
3. During the second step of the two-step migration, in the dialog that comes up after choosing the .csv file, clear the Information to Create Mailboxes check box.
4. If asked to create a Windows NT account, do not create one.

Following these steps will allow you to migrate a user's mail and address book information from an MS Mail (PC) account to an existing Exchange Server mailbox.