Replicate a Mailbox that Doesn't Have a Primary Windows Account in the Domain

• On the Advanced tab, in When replicating a Mailbox whose Primary Windows Account does not exist in the Domain, click one of the following options:
Create a Windows Contact A pointer to a foreign address or a recipient outside the organization.
Create a disabled Windows User Account A user account that does not permit logons.
Create a new Windows User A record that consists of all the information that defines a user to Windows 2000. It creates a new user account in the Windows 2000 directory that includes the membership groups and the rights and permissions for the user.