remote mailbox move failing for 1 mailbox only

Question

Trying to move an Exchange mailbox between two Exchange Organizations (cross forest).

Only 1 mailbox failing with this error.
I can successfully move other mailboxes.

This is the log file:

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11/03/2021 16:07:07 [UKMBX1] 'domain.co.uk/admin users/service accounts/ADEX Migration' created move request.
11/03/2021 16:07:07 [UKMBX1] 'domain.co.uk/admin users/service accounts/ADEX Migration' allowed a large amount of data loss when moving the mailbox (100 bad items).
11/03/2021 16:07:13 [UKMBX1] The Microsoft Exchange Mailbox Replication service 'UKMBX1.domain.co.uk' (<IP Address> caps:07) is examining the request.
11/03/2021 16:07:13 [UKMBX1] Connected to target mailbox 'Primary (b285a119-be66-49b3-a895-74f078e947f5)', database 'Store1 250GB', Mailbox server 'UKMBX2.domain.co.uk' Version 14.3 (Build 123.0).
11/03/2021 16:07:16 [UKMBX1] Connected to source mailbox 'Primary (b285a119-be66-49b3-a895-74f078e947f5)', database 'Mailbox Database 6546516265', Mailbox server 'Exch03.domain.com' Version 14.3 (Build 513.0), proxy server 'Exch01.domain.com' <IP Address> caps:05FFFF.
11/03/2021 16:07:17 [UKMBX1] Request processing started.
11/03/2021 16:07:17 [UKMBX1] Mailbox signature will not be preserved for mailbox 'Primary (b285a119-be66-49b3-a895-74f078e947f5)'. Outlook clients will need to restart to access the moved mailbox.
11/03/2021 16:07:18 [UKMBX1] Fatal error DestinationADNotUpToDatePermanentException has occurred.
Error details: The destination Active Directory forest isn't up to date, which prevents the move from proceeding. Verify that Active Directory replication is working.
at Microsoft.Exchange.MailboxReplicationService.MoveBaseJob.<>c__DisplayClass2b.<CreateDestinationMailbox>b__25()
at Microsoft.Exchange.MailboxReplicationService.ExecutionContext.Execute(GenericCallDelegate operation)
at Microsoft.Exchange.MailboxReplicationService.MoveBaseJob.CreateDestinationMailbox(Object[] wiParams)
at Microsoft.Exchange.MailboxReplicationService.CommonUtils.CatchKnownExceptions(GenericCallDelegate del, FailureDelegate failureDelegate)
Error context: --------
Mailbox: Primary (b285a119-be66-49b3-a895-74f078e947f5)
11/03/2021 16:07:19 [UKMBX1] Relinquishing job.

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Answer 1

Hi, @Patrick Walker

According to the error message, would you please check if there are some problems with the AD replication between domain controllers in the target forest?

And if the migration only failed on one user, you may also migrate the mailbox via exporting and importing pst files.
Before performing the commands,you may need to assign the Import/Export Management role to the account.
Export: New-MailboxExportRequest
Import: New-MailboxImportRequest
Here is also an article from TechNet for your reference: Exchange 2010: Export Mailbox to PST

In addition, Exchange 2010 has reached its end of support on October 13, 2020.
It is recommended to upgrade to Exchange 2016 or Exchange 2019 for better support.

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Answer 2

Please exchange replication service restart and try move by command. New-MoveRequest -Identity "dmenillo" -PrimaryOnly -TargetDatabase DB -BadItemLimit 1000 -AcceptLargeDataLoss –Priority Highest