Exchange 2010 DiscoverySearchMailbox

We have one of these on our 2nd site which i guess works ok, dont know much about them TBH.

What does this do and can we have more than one i.e can we add another discover mbox to our 1st site server?
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Dant7Connect With a Mentor Commented:
Exchange 2010 setup creates a special mailbox (discovery mailbox) with a display name “Discovery Search Mailbox” by default.

This mailbox is a used as the target mailbox for discovery searches in the exchange control panel. Discovery search comes in when your company auditor or HR wants to search for emails across all the mailboxes.

Like all mailbox types, a discovery mailbox has an associated Active Directory user account, but it is disabled by default.

If you remove a discovery mailbox, all search results stored in the mailbox are removed.
By default, discovery mailboxes have a mailbox storage quota of 50Gb. You can modify the quota to suit your requirements.
In order to create a new discovery mailbox named Discovery Mailbox1, run

New-Mailbox –identity “Discovery Mailbox1” –Discovery –UserPrincipalName “”

In order to get a list of all discovery mailbox, run

Get-Mailbox -Filter { RecipientTypeDetails -eq "DiscoveryMailbox" }
CHI-LTDAuthor Commented:
I assume a best practice would be to have one for each information store or exchange server?
Assuming you are not using it and are a relatively small organisation then one should be fine. It has the required access across the organisation.
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Dant7Connect With a Mentor Commented:
If you wish to test this you can run the following cmdlet:

Search-Mailbox -Identity "April Stewart" -SearchQuery "Subject:'Your bank statement'" -TargetMailbox "administrator" -TargetFolder "SearchAndDeleteLog" -LogOnly -LogLevel Full


Please let me know how you get on.
CHI-LTDAuthor Commented:
can you point the search results to a specific mailbox i.e.. mine?
Dant7Connect With a Mentor Commented:
Yes you can.

The user which the search is performed by, i.e. your admin account, will need to be a member of the 'Discovery Management' group to activate the search-mailbox cmdlet.

To redirect the output to your mailbox, create a folder and then change the -TargetMailbox parameter to your account and the -TargetFolder to the created folder.

Once completed this will put a message in that folder with the results in a zip folder. The results are in a CSV file.
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