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Legacy DN

Posted on 2014-11-10
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Last Modified: 2014-11-13
i delete contacts of external user emails because we acquired the company and now the user are inside with their domain was i suppost to export and import those legacy DNs from those users?
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Question by:Jorge Ocampo
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Expert Comment

by:Jamie McKillop
ID: 40433406
Hello,

Yes, you should have exported the legacyExchangeDNs from the contacts and added them as X500 addresses on the new mailboxes.

See my article here for more info:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_9650-NDRs-and-the-legacyExchangeDN.html

-JJ
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by:Jorge Ocampo
ID: 40433521
do you know how to restore AD objects? a gui tool?
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by:Jamie McKillop
ID: 40433538
If your forest functional level is at 2008 R2 or above, you can enable the AD recycling bin (http://technet.microsoft.com/en-us/library/dd392261%28v=ws.10%29.aspx), otherwise, you would need to perform an authoritative restore of AD to get the objects back.

-JJ
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by:Jorge Ocampo
ID: 40433793
can one just delete the ova for the user to solve it?
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Jamie McKillop earned 500 total points
ID: 40437351
You could purge the names cache for the affected users. You can delete specific entries of the whole cache. Here are the instructions:

http://support.microsoft.com/kb/287623

-JJ
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