JSI Tip 4642. User, Mailbox, and Contact Administration.

Microsoft TechNet article User, Mailbox, and Contact Administration, begins with:

Topics on this Page  

Understanding Users and Contacts
Understanding the Basics of E-Mail Routing 
Working with Active Directory Users And Computers
Managing User Accounts and Mail Features
Managing Mailboxes
Managing Contacts

One of your primary tasks as a Microsoft Exchange administrator is to manage user accounts, mailboxes, and contacts. User accounts enable individual users to log on to the network and access network resources. User accounts are the only Active Directory directory service objects that can have Exchange mailboxes associated with them. Contacts, on the other hand, are people that you or others in your organization want to get in touch with. Contacts can have street addresses, phone numbers, fax numbers, and e-mail addresses associated with them. Unlike user accounts, contacts don't have network logon privileges.