Question : Accidentally deleted Exchange Attributes

I accidentall deleted the Exchange Attributes of a complete OU. How can I fix this?
When I right click on a user the Exchange tasks offer me to create an mailbox, but the mailboxes are still there.
How can I reconnect them?

Answer : Accidentally deleted Exchange Attributes

got into the exchange system manager. click mailboxes under your server.
you will see the disconnected mailbox, right mouse button on them and reconnect to the user.
if they don't appear then right click on mailboxes and click run cleanup agent.