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Exporting mail between Exchange servers

Hi,

We have just migrated from an exchange 2007 server to exchange 2010. unfortunately there was no way to create a trust between the 2 sites and emails have been exported to PST and then reimported to the new server.

All the mail has come across but now if a user attempts to reply to an email that's been imported the user gets the mail tip that state the address is no longer valid. I suspect this is because outlook is looking for the X400 address from the previous exchange server.

Is there anyway I can tie these emails back to there new email addresses on the new system ?
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Z1ggy
Asked:
Z1ggy
1 Solution
 
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Its not X400 but you have to add X500 and its simply LegacyExchangeDN value from the old account or you can get this from the Undeliverable too

Preserving Nickname Cache in Exchange Migrations
http://blog.scottlowe.org/2007/02/15/preserving-nickname-cache-in-exchange-migrations/

LegacyExchangeDN / x500 Addresses
http://www.rackspace.com/apps/support/portal/6233

The secret about a successful export-to-pst and import-from-pst migration is called Add Custom Address, type X500
http://blogs.technet.com/b/ilvancri/archive/2011/10/25/the-secret-about-a-successful-export-to-pst-and-import-from-pst-migration-is-called-add-custom-address-type-x500.aspx

- Rancy
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