Installation of Exchange 2013 Failed on Mailbox Role Transport Service

Question

Hi All,
Getting this error when trying to install a new exchange 2013 server. Thanks in advance
Error:
The following error was generated when "$error.Clear();
          if ( ($server -eq $null) -and ($RoleIsDatacenter -ne $true) )
            Update-RmsSharedIdentity -ServerName $RoleNetBIOSName
        " was run: "Microsoft.Exchange.Data.DataValidationException: Database is mandatory on UserMailbox.
   at Microsoft.Exchange.Data.Directory.ADDataSession.Save(ADObject instanceToSave, IEnumerable`1 properties, Boolean bypassValidation)
   at Microsoft.Exchange.Data.Directory.Recipient.ADRecipientObjectSession.Save(ADRecipient instanceToSave)
   at Microsoft.Exchange.Management.Deployment.UpdateRmsSharedIdentity.Link()
   at Microsoft.Exchange.Management.Deployment.UpdateRmsSharedIdentity.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePipelineIfFailed)".

Answer 1

Hi,
This problem occurs because the federated built-in e-mail account that links to the computer account no longer exists. Or, the federated built-in e-mail account in the AD
 directory service is corrupted.
Please try to follow these steps to solve this problem.
    1. Remove the FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 e-mail account by using the ADSIEDIT tool. To do this, follow these steps:
Click Start, click Run, type adsiedit.msc, and then click
OK.
Locate the Default Naming Context node, and then locate to the
CN=Users container.
Locate and then right-click the CN=FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 container. Then, click
Delete.
    2. Rerun the Exchange Server 2013 Mailbox role setup application.
    3. Create a new federated e-mail account by using the following command:
New-Mailbox -Arbitration -Name FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 -UserPrincipalName FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042@<Default_Accepted_Domain>
If this issue persistes, please let me know.
Best Regards.