Unable to uninstall last Exchange 2010 server

Question

Hi,
I am unable to uninstall last Exchange 2010 server from the organization.
I get error message:
Summary: 3 item(s). 2 succeeded, 1 failed.
Elapsed time: 00:00:19
Configuring Prerequisites
Completed
Elapsed Time: 00:00:00
Mailbox Role Prerequisites
Failed
Error:
Uninstall cannot continue. Database 'Mailbox Database 2105185066': This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, or arbitration mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox
-Database <Database ID>. To get a list of all mailbox plans in this database, run the command Get-MailboxPlan. To get a list of archive mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Archive. To get a list of all
arbitration mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Arbitration. To disable a non-arbitration mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID>. To disable
an archive mailbox so you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID> -Archive. Arbitration mailboxes should be moved to another server; to do this, run the command New-MoveRequest <parameters>. If this is the
last server in the organization, run the command Disable-Mailbox <Mailbox ID> -Arbitration -DisableLastArbitrationMailboxAllowed to disable the arbitration mailbox. Mailbox plans should be moved to another server; to do this, run the command Set-MailboxPlan
<MailboxPlan ID> -Database <Database ID>.
Click here for help...
http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=4a96fd69-9cec-4a48-9571-5c9e8ab3cfe9
Elapsed Time: 00:00:15
Organization Prerequisites
Completed
Elapsed Time: 00:00:03
I have deleted all the mailboxes, distribution groups, contacts, etc. but I am still unable to uninstall one database. When trying to delete the last database I get following error message:
The mailbox database 'Mailbox Database 2105185066' cannot be deleted.
Mailbox Database 2105185066
Failed
Error:
This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, or arbitration mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox -Database <Database ID>. To get a list of all mailbox plans
in this database, run the command Get-MailboxPlan. To get a list of archive mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Archive. To get a list of all arbitration mailboxes in this database, run the command Get-Mailbox
-Database <Database ID> -Arbitration. To disable a non-arbitration mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID>. To disable an archive mailbox so you can delete the mailbox database, run the
command Disable-Mailbox <Mailbox ID> -Archive. Arbitration mailboxes should be moved to another server; to do this, run the command New-MoveRequest <parameters>. If this is the last server in the organization, run the command Disable-Mailbox <Mailbox
ID> -Arbitration -DisableLastArbitrationMailboxAllowed to disable the arbitration mailbox. Mailbox plans should be moved to another server; to do this, run the command Set-MailboxPlan <MailboxPlan ID> -Database <Database ID>.
If I run command "Get-Mailbox -Database "Mailbox Database 2105185066" -Arbitration | ft -Wrap -Auto", I get following result:
Name                                               
Alias                                              
ServerName Prohibit Send Quota
SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} ex01       unlimited
FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 ex01       1 MB (1,048,576bytes)
I suspect it is because of these "maiboxes" why I am unable to delete the database.
If I run command "Disable-Mailbox SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} -Arbitration -DisableLastArbitrationMailboxAllowed ", I get following error message:
A positional parameter cannot be found that accepts argument 'e0dc1c29-89c3-4034-b678-e6c29d823ed9'.
    + CategoryInfo          : InvalidArgument: (:) [Disable-Mailbox], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,Disable-Mailbox
Do you have any ideas how to delete the last database and uninstall the last Exchange 2010 server properly from the organization?
Best regards,
Toni
www.triuvare.fi

Answer 1

Hi,
I agree with Martina. This should be solved somehow without need to use ADSI Edit.
Martina, I did run the command you suggested (Get-mailbox -arbitration | disable-mailbox -DisableLastArbitrationMailboxAllowed), but unfortunately here is the result:
The operation couldn't be performed because object 'Company.local/Users/SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}' couldn't be found on 'DC.Company.local'.
    + CategoryInfo          : InvalidData: (Company.local/U...8-e6c29d823ed9}:MailboxIdParameter) [Disable-Mailbox], ManagementObjectNotFoundException
    + FullyQualifiedErrorId : 63BA19E1,Microsoft.Exchange.Management.RecipientTasks.DisableMailbox
The operation couldn't be performed because object 'Company.local/Users/FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042' couldn't be found on 'DC.Company.local'.
    + CategoryInfo          : InvalidData: (Company.local/U...bf-00a95fa1e042:MailboxIdParameter) [Disable-Mailbox], ManagementObjectNotFoundException
    + FullyQualifiedErrorId : 4002E2C8,Microsoft.Exchange.Management.RecipientTasks.DisableMailbox
Connection between the Exchange server and the Domain Controller (DC.Company.local) is working.
Best regards,
Toni
www.triuvare.fi