remove mailbox without user

i need to remove a mailbox in exchange 2007 but not the user
how to i do it?
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Syed Mutahir AliTechnology ConsultantCommented:

In Exchange 2007 when you disable a mailbox via the ECM the  mailbox attributes are removed from the user account and the mailbox is  marked for deletion and moved to the disconnected mailbox area.

When  you select remove it does the same as above however is also deletes the  user account from AD. Therefore disabling a user seems to be a two step  process now where you disable the mailbox and then disable to account.
Rick FeeMessaging Engineer - Disaster Recovery EngineerCommented:
from the command shell disable-mailbox username or from the Recipients container.
ywainbergAuthor Commented:
after i disable the account ,it means that the mailbox was removed from the database and will erase the mailbox? because the reasone i want do remove old mailbox is to clear space on my hard drive
Syed Mutahir AliTechnology ConsultantCommented:
The space used by that mailbox will not be avaiable on your hard drive as it would now be used by exchange information store.

if you want to use the AD User account (do not disable the account), disable the mailbox in Exchange Mgmt console as per my first post.

The space will be shown as whitespace in your information store (it still won't be available as free space on your hard drive) but will be used by future mailboxes or current mailboxes growing in sizes.

Event ID 1221 in your event viewer will show you the amount of whitespace you have in your exchange database.

If you think you have disabled quite a few mailboxes, sometimes people will create another information store (storage group, database) and move mailboxes to it, then delete the old mailboxes.

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