User is corrupted or isn't compatible with Microsoft support requirements

Question

_{Thursday, September 7, 2017 9:41 AM}

 Hi,

My setup is Exchange 2016 Hybrid.

I have a user which is giving problems. This user used to be Exchange and domain administrator.  When I try to list or find users I get this error :

WARNING: The object xxxx.xx/Tier1/Data Administrators/adx-karu has been corrupted or isn't compatible with Microsoft
support requirements, and it's in an inconsistent state. The following validation errors happened:
WARNING: ExchangeGuid is mandatory on UserMailbox.
WARNING: DisplayName is mandatory on UserMailbox.
WARNING: ExchangeGuid is mandatory on UserMailbox.

This user is disabled and I can not see any mailbox beloging to him

Any idea?

Erro

All replies (4)

_{Friday, September 8, 2017 2:31 PM ✅Answered | 1 vote}

Hi,

Based on your description, I know that you are getting the warnings when you run Get-mailbox for this user. 

From the error message, issue occurred because the attributes msExchMailboxGuid and displayname are not set to the user’s mailbox.

We could check it in ADUC:
View -> select advance features.
Double click the user name -> attribute editor -> find the two attributes above and check if the value is not set.

So have you ever made a backup recently or have you ever exported or recorded the user mailbox’s information, including the GUID and display name?

If so, you could reset them in ADUC or recover them. We could follow this thread to reset the two attributes: https://support.microsoft.com/en-us/help/322308/xadm-event-id-9554-appears-after-you-modify-mailbox-permissions
If no, we may need to create a new mailbox instead of it.

Best Regards,

Manu Meng
TechNet Community Support

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_{Thursday, September 7, 2017 10:00 AM}

Hi Erro

You need to correction in disable command, use following command

Disable-Mailbox “SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}” -Arbitration -DisableLastArbitrationMailboxAllowed

For database,

Remove-MailboxDatabase “Mailbox Database 0912423282”

Regards,

Raj

Please mark as an "Answer" and do "Vote",if my contribution or answer is useful

_{Friday, September 8, 2017 7:51 AM}

  Hi Raj, thanks for your reply.

   So it should be ok for me to disable "DisableLastArbitrationMailboxAllowed" whithout regrets :)

    and it does not matter that this is Hybrid ? I have two servers so I need to do this on both.

    I can not find “Mailbox Database 0912423282” it looks like it does not excist.

   brgds,

Erro

_{Friday, September 8, 2017 12:13 PM | 1 vote}

Hi

Take help from the following blog : https://support.microsoft.com/en-au/help/2702446/error-message-when-you-perform-a-multi-mailbox-search-in-exchange-serv

Regards,

Raj

Please mark as an "Answer" and do "Vote",if my contribution or answer is useful