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Exchange 2010 remove a mailbox but leave AD account active

Posted on 2014-11-26
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Last Modified: 2014-12-05
Greetings,

In Exchange 2003 it was possible to remove/disconnect a mailbox from an Active Directory account but not delete the AD account.  That way you could restore a backup of the mailbox and reattach it to the original AD account.  In Exchange 2010, when in the Exchange Management Console and working with the Recipient list, if I remove a mailbox, it will also delete the associated AD account.  I can not find any option to remove the mailbox but leave the AD account still active.  Any thoughts on how to di this would be appreciated.  Many thanks in advance.
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Question by:jkirman
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by:VB ITS
ID: 40466551
To remove the Exchange mailbox and leave the AD account active, all you have to do is right click on the mailbox in the Exchange Management Console > Recipient Configuration > Mailbox > then select Disable.

A message will then appear to confirm that you are removing the Exchange mailbox from their user account.
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VB ITS earned 500 total points
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Here's a screenshot of the message that appears when you choose the Disable action in Exchange 2010.Disable-Mailbox-in-Exchange-2010.PNGAs you can see, this will remove just the Exchange properties from the account whereas the Remove action will both remove the Windows user object (i.e. the user account in AD) and the mailbox as well.

Exchange will retain the deleted mailbox based on your deleted mailbox retention policy which is by default 14 days. You can verify this setting by expanding Organization Configuration > Mailbox > Database tab > right click on your mailbox database > Properties > Limits tab > look at the Keep deleted mailboxes for (days): setting.
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Author Closing Comment

by:jkirman
ID: 40484318
Thanks VP ITS this was exactly what I was looking for!  Tested it and it did the trick exactly as needed.  Awarding points.

Cheers!
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