ISSUE: Mailbox move failed with "TooManyTransientFailureRetriesPermanentException"

Last modified: 1 year ago

Overview

The error below occurs during the Move Mailbox migration step.

"Status is Failed and Status Detail is FailedOther. Failure message is TooManyTransientFailureRetriesPermanentException "

Cause

Error usually occurs when there are too many transient failures during mailbox which causes the migration to stop.

It can be just transient failure which can be solve easily or it may also suggest that mailbo is corrupted which would require full repair of mailbox or exchange database.

Solution

There are various things that could affect this migration of the mailbox. You can try following solutions:

1. Connect to Exchange Online via powershell ("Connect-ExchnageOnline") and run following command “Resume-MoveRequest -Identity UserUPN”

2. If first solution won't resolve the problem then you can run the following command.

$stats = Get-MoveRequestStatistics -identity [user@contoso.com](mailto:user@contoso.com) -IncludeReport
$stats.Report.Failures | select -last 2

This will give you a small report of the last two failures on the specified mailbox and more information on the matter so you can analyze the issue.

3. If the problem persists, you can export the report for analysis to an XML file, which can be provided to Microsoft for support.

Get-MoveRequestStatistics -identity [user@contoso.com](mailto:user@contoso.com) -IncludeReport -DiagnosticInfo showtimeslots | Export-CliXml