We are migrating from MS Exchange 2010 SP3 to 2016 (CU7). All servers are on premises.

We moved several mailboxes from a 2010 server to 2016 without issue.

Now for 3 mailboxes the MoveRequest stall. The status showed by a "Get-MoveRequestStatistics" is :

Status : Queued
StatusDetail : StalledDueToTarget_ContentIndexing

What we have tried:

  • stop or restart the services Microsoft Exchange Search and Microsoft Exchange Search host controller
  • checked that the group ContentSubmitters exist (it did) and add Full Controll for "Network services", then restart the search services.
  • Disabled content indexing on the target database with the command Set-MailboxDatabase "dbID" -IndexEnabled $false
  • Removing and recreating the move request after those
  • Suspending and resuming the move request
  • Moving the mailbox to 3 other exchange 2010 databases then trying to move them to a 2016 server, to various destination databases

Still no luck.

How can I have those move requests to succeed?

  • Does these 3 mailbox are in a separated db? or they were all in the same db before the move ?
    – yagmoth555
    May 28 '18 at 9:21
  • @yagmoth555 Forget to add, I also moved the mailbox to 3 different 2010 database, to start from a clean status, editing the question.
    – JFL
    May 28 '18 at 9:22

Just set the indexing to false, then when time appropriate set true. The mailbox indexing should always be true, but when migrating mailboxes may become challenging. Use this on a limited basis as indexing should always default to true!

Set-MailboxDatabase "your mailbox database" -IndexEnabled:$False
Set-MailboxDatabase "your mailbox database" -IndexEnabled:$True
  • Thanks, but we already tried that, see 3rd bullet point in my question.
    – JFL
    Jul 4 '20 at 9:51

Does it occur on one special target database in Exchange 2016? If so, try to disable the content indexing on this database and re-move again.

Set-MailboxDatabase “your mailbox database” -IndexEnabled:$False

Also, stop Exchange search service and remove search index file (\V15\Mailbox\).

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