I came across an error today when trying to move a mailbox from Exchange 2003 onto Exchange 2010.
Active Directory operation failed on Domain Controler. This error is not retriable. Additional information: Insufficient access rights to perform the operation.
Active directory response: 00002098: SecErr: DSID-03150BB9, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0
a) Cancel the move request
You can examine this move request by running 'Get-MoveRequestStatistics -MoveRequestQueue 'YourExchangeMailboxDatabase' -MailboxGuid MailboxGuidOfTheAccount -IncludeReport | fl'.
You can remove it by running 'Remove-MoveRequest -MoveRequestQueue 'YourExchangeMailboxDatabase' -MailboxGuid MailboxGuidOfTheAccount'.
b) Give correct rights to the user account
1. Open ADUC (with advanced features view)
2. user account > properties > security tab > advanced
3. Check the box "include inheritable permission" and apply.
4. Launch replication between your DC
c) Move the Mailbox