I try to send an email to a contact, who is in the Contacts folder, but
reeive bounce with this message:

Permanent Failu _is_not_a_valid_user
Delivery last attempted at Tue, 10 Jul 2007 15:52:59 -0000

I deleted the valid contact from the list and then reentered it but got same
result. Some time ago Outlook was corrupted and even after repairing, I lost
the address book (no enrires in it at present) and have only a contact file.
Could this be part of the problem? I would like to know how to copy the
contact folder back into the address book as well.

i was usoing Outlook 2002 but now have Outlook 2007 and problem came with
the changever.

Any help resolving this mess would be greatly appreciated!