Disable Outlook Auto-Mapping with Full Access Mailboxes

Xavier Mustin

Administrator
Staff member
#1
Problem
Some may argue that this is a great feature, auto-mapping mailboxes, but there are times when you simply do not need this feature and its terrible that Microsoft didn’t include an option to disable this feature before Exchange 2010 SP2.
Here is a short overview of what this feature accomplishes. In Exchange 2010 and Outlook 2010, any users granted full access to another users mailbox will automatically get that users mailbox mapped to their Outlook account.

Solution
This can be very annoying at times, so here is a quick tutorial on how to disable the feature. This tutorial uses the EMS (Exchange Management Shell) and you must be running Exchange 2010 SP2.

First of all let’s see how you would add permissions to a new mailbox with the auto-mapping feature disabled.

Open the EMS and execute the following command
Code:
$FixAutoMapping = Get-MailboxPermission Info | where {$_AccessRights -eq "FullAccess" -and $_IsInherited -eq $false}
$FixAutoMapping | Remove-MailboxPermission
$FixAutoMapping | ForEach {Add-MailboxPermission -Identity $_.Identity -User $_.User -AccessRights:FullAccess -AutoMapping $false}
 
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