Identify Mailbox Access in Exchange 2010

Hello Experts,

Can you provide an example powershell script or command I can run to determine who has access to a users mailbox? (Exchange 2010)

For example, in the EMC I can browse to Recipient Configuration, then right-click on a mailbox and select 'Manage Full Access Permissions'. This displays all users who currently have full access to the mailbox.

Is there a way to export this info with a script, or query it on the fly in a simple way such as by running a script?

Thanks Experts!
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zequestionerAsked:
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Adam BrownConnect With a Mentor Sr Solutions ArchitectCommented:
Probably a more informative way to do it is this:

get-mailboxpermission <mailbox name> | Select user,accessrights | export mailboxperms.csv

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That will export the permissions with the user the permissions are set to for whatever mailbox you enter to a csv file. If you want the permissions on everyone, you could generate it with the following:

$users = get-mailbox
foreach ($user in $users)
{
     $alias = $user.alias
     $file = "c:\folder\" + $alias + ".csv"
    get-mailboxpermission $alias | select user,accessrights | export-csv $file
}

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That will build a CSV with the permissions for each mailbox in the environment.
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EEhotlineConnect With a Mentor Commented:
Try this command:

Get-MailboxPermission "username" | where {$_.AccessRights -like "*FullAccess*"}

Ref link:
http://blogs.technet.com/b/messaging_and_beyond/archive/2012/05/09/powershell-enumerating-access-rights-on-mailboxes.aspx
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Pankaj_401Connect With a Mentor Commented:
Here is good explanation of your exact concern : How to List all Users Who Have Access to Other Exchange Mailboxes
In addition, this one is also equipped with several proficient features which helps to monitor and instantly alerts for all critical changes like, mailbox permission, policies changes or configuration changes in exchange server.
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