You cannot move certain mailboxes from a Microsoft Exchange Server 2003 server to a Microsoft Exchange Server 2010 server. Additionally, the following error is logged in the Application log on the Exchange Server 2010 server:
Log Name: Application
Source: MSExchange Mailbox Replication
Date: <Date>
Event ID: 1100
Task Category: Request
Level: Error
Keywords: Classic
User: N/A
Computer: <Computer>
Description:
Request '<mailbox name>' (<GUID>) failed.
Error code: -2147221246
MapiExceptionNoSupport: IExchangeFastTransferEx.TransferBuffer failed (hr=0x80040102, ec=-2147221246)
Source: MSExchange Mailbox Replication
Date: <Date>
Event ID: 1100
Task Category: Request
Level: Error
Keywords: Classic
User: N/A
Computer: <Computer>
Description:
Request '<mailbox name>' (<GUID>) failed.
Error code: -2147221246
MapiExceptionNoSupport: IExchangeFastTransferEx.TransferBuffer failed (hr=0x80040102, ec=-2147221246)