Error Removing Mailbox Database


Error Removing Mailbox Database: This Mailbox database contains one or more mailboxes.

When you try and remove an “Exchange Mailbox Database” you received the following error:

“This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or
arbitration mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox -Database
<Database ID>.”

What does this mean ? , even if you have moved all the mailboxes from the Mailbox Database, Exchange still has mailboxes which is called “Arbitration” mailboxes and since Exchange 2013 Public Folder are now a mailbox as well. To know more about the “System Mailboxes” click here.

So how do we check for these Mailboxes ? , To get a list we can run the following commands.

Lets start by having a look if there is any “Arbitration” mailboxes on mailbox database EXHDB06.

As we can see there is no “Arbitration” mailboxes on this database so lets move on to see if there is any “Public Folder” mailboxes on the database , to verify run the following command.

Based on the results from the above command we have found the “Problem Child” , Lets go ahead and move this mailbox to newly created mailbox database.

To check the status of the “Move-Request” run the following command.

Now that we have moved the “Public Folder” mailboxes to another database we can attempt to go ahead and remove the “Mailbox Database” now. Before we run the remove database command we need to dismount the database again.

After Dismounting the database we can now go ahead and remove the “Mailbox Database“.

Note that the “Warnings” indicate that you can now manually remove the “.edb”¬†files as well as remove the “Monitoring Mailbox” active directory user object.







Shaun Hardneck
ICT – Systems Manager
I see myself as somebody with broad experience in all aspects of IT Infrastructure, Technical Support and Network Solution Design , with my main focus on Microsoft Server Technologies . Experience in IT consulting in the Corporate Industry.

I see Myself as an Hard worker that tries to deliver the best at every task or project i receive.

“You can never plan the future by the past” Edmund Burke

Future Goals is too Grow a Low Cost reliable IT Support Service Desk.

Specialties: IT infrastructure and Microsoft Solutions and Office 365 Designs and Systems Support.

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