I am having some issues while migrating some 2003 mailboxes to 2010 SP1 Rollup2 (14.01.0270.001). This issue is isolated to few users and so far is limited to 5 out of ~250.
The error in the log is:
Initializing folder hierarchy in mailbox 'Primary (660a6db4-c9cb-47b3-a43d-96f89c50ab87)': 62 folders total.
2/24/2011 7:14:09 PM [xxxxxx] Fatal error MapiExceptionNoSupport has occurred.
Error details: MapiExceptionNoSupport: IExchangeFastTransferEx.TransferBuffer failed (hr=0x80040102, ec=-2147221246)
The research that I have done suggested a corrupted DACL. I redid the DACL permissions on the entire mailbox and that makes no difference. I have also moved the mailbox to a different 2003 mailstore and tried to migrate again, but that makes no difference. Has anyone came across this issue before?
Also, all the users that have failed all have first names that begin with "A". I don't know how this would be related as other users with that similarity have moved sucessfully, but I thought I would mention it as well.