Restore Default Mailbox Rights in Exchange Server 2003

Is there a simple way to restore mailbox rights to default for mailboxes in Exchange Server 2003? Several of our mailboxes have had the permissions changed to allow someone Send As or Full Mailbox Access for various reasons, but now, we would like to systematically restore the permissions to the defaults as defined in the schema (I would assume it's in the schema). I imagine this can be done with dsacls <ObjectDN> /s, but I don't know where the actual mailbox is located in Active Directory. It makes me nervous that this might break the mailbox is not created yet (no mail sent to it or not accessed by the user), so a any information on that would also be appreciated.

Thanks in advance.
ProUAdminAsked:
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MightySWConnect With a Mentor Commented:
Hi,

Exchange mailboxes inherit their rights from the security on the store so in order to overwrite the permissions on the mailboxes you must re-inherit the permissions from the root of that store.

Try this out:

http://technet.microsoft.com/en-us/library/aa997809(EXCHG.65).aspx

HTH
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ProUAdminAuthor Commented:
That makes sense. For some reason I thought the user was explicitly granted rights to their own mailbox, but I see it's actually granted to SELF. Thanks for your help.
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MightySWCommented:
No worries.  Glad to help.
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