Hi,

we have a problem with the eDiscovery search. If I search for specific categories in eDiscovery (e.g. category:red ) the search is failing and I am getting: The mailbox database is temporarily unavailable. Even in Powershell the search fails and I am getting mailboxdatabaseoffline Exception.

But if I search for from:somemail@example.com the search is working without any errors.

Does anyone has an idea how to solve that? Thanks.

Hi,

From your description, I recommend you use the following cmdlet to search and check the result.

New-MailboxSearch -Name "xxx" -SearchQuery {category:"Red Category" -and from:contoso.com} 

For your reference:

Message properties and search operators for In-Place eDiscovery

https://technet.microsoft.com/en-us/library/dn774955(v=exchg.150).aspx

Hope this can be helpful to you.

Best regards,

If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

Hi,

thanks for your help.

I am getting into the same problem here. After that command if I use Get-MailboxSearch I am getting the mailbox  temporarily unavailable error. After a minute if I issue the command again the status is "EstimateFailed".

Greetings,

Christian