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recover deleted mailbox - after new one created

Erik Whiteway
Last Modified: 2008-06-20
I have a mailbox that I need to recover (HumanResources) - it's showing in exchange system admin as there with a red X.

BUT we have already created a new mailbox.

When I try to reconnect the mailbox (to a new account named recover) I get: /o-first../CN=HR This legacyExchangeDN value is already being used by 'CN=Human Resources....'

ID no: c1034ad7

Any ideas how I can get the data out of this old mailbox?

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Chris StauntonSr. Infrastructure Engineer

Have you tried to force replication and also run your mailbox cleanup?  After the forced replication and cleanup you should be able to attach the mailbox to an account without a mailbox already attached to it.


Erik WhitewayConsultant


I was worried that a mailbox clean up would delete the files.

If you are sure they won't erease the data, I'll replicate and cleanup and try a re-attatch.

Erik WhitewayConsultant


I ran the mailbox clean up.... not sure where to force replication.  but it's beed days, should have replicated by now.

Anyways, Still same error-  Any other ideas?
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Erik WhitewayConsultant


I'm a little confused, and scared by that answer...

I've already got the mailbox with a red X on it.  If I purge it, won't it be gone?

I think the issue is someone already created a new mailbox with the exact same name as the old mailbox. Even tho I am trying to link it to a new user (different name - created with no mailbox) I get the error.  Could it be detecting the new mailbox?

Chris StauntonSr. Infrastructure Engineer

------I was worried that a mailbox clean up would delete the files.

If you are sure they won't erease the data, I'll replicate and cleanup and try a re-attatch.

I was referring to that statement, if you purge you delete, not if you run mailbox cleanup, sorry don't want to scare you there.. :)

The link simply points to a user, it shouldn't matter what name you point it to it should just hold mail for that user.

I would love a solution to this one.  I too deleted a user in ad; recreated a new mailbox in a different store (by accident); I have the users old mailbox object with the red X on it and now want to reattach it to a different "test" user account so I can pst the mail and import it into his new mailbox.  The issue is that the legacy DN is already being used on the new mailbox so it won't attach the old mailbox to the "test" user.  ID no:c1034ad7 (This legacyExchangeDN value is already bing used by "CN= and so on".
Craig FancyVP Of Technology

the legacyDN is stamped on the exchange object on creation.  Because the "New" user has the same alias, the new mailbox will be stamped with the same legacyDN so you WILL NOT be able to reconnect this mbx.  it doesnt matter what new account name is being used, it is deeper than that.

the way i got round this was to exmerge the data out of the new mailbox, delete it, attach the user account to the old one and then exmerge the data back in.  bit dirty, but unfortunately this was the only way i could find to do it.

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