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Why is the Microsoft Exchange Migration tool sending mailboxes to a database other than the one I select?

When using the MS Exchange Migration tool through the Exchange Admin center (http interface) to move mailboxes, the migration tool sent the mailbox to a completely different database than the one selected. We have three databases, db1, db2, and spamdb. We are moving servers to a datacenter offsite. DB1 and SPAMDB are local to each other (i.e. on the same server) and DB2 is the datacenter. All mailboxes are on DB1.

When I migrated mailboxes to DB2, some actually went and others went to the SPAMDB. Now, when I individually select the mailboxes in SPAMDB to migration to DB2, it tells me it migrated fine but I look and they're all still on SPAMDB.

Any suggestions?

pcmghouse

can you please check if you have the database excluded from provisioning. manual moves should work but there is a bug.
get-mailboxdatabase db2|fl isexcludedfromprovisioning

jhudson1977

ASKER

I guess I have another issue I need to figure out first. I ran the above command and got:

"The operation couldn't be performed because object 'db2' couldn't be found..."

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jhudson1977

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jhudson1977

ASKER

I accepted my comment as the solution because it worked. Not sure what else to say. I included all the code I used in PowerShell to assist others who might run into this issue.