Windows® Essential Business Server 2008 Administrator's Companion

Using Contacts

Contacts are Microsoft Exchange objects that don’t require an Active Directory user account, nor do they have mail stored in Exchange. But they do need to be both a contact in Active Directory and mail-enabled in Microsoft Exchange.

If you already have contacts in Windows EBS, they should be mail-enabled if you upgraded to Microsoft Exchange 2007 from an earlier version of Exchange. If, however, you created them new in Active Directory, or you didn’t have a previous version of Exchange, they’ll need to be mail-enabled before Microsoft Exchange can use them.

If you’re creating contacts now, by creating them directly in Exchange, they are also added to Active Directory at the same time, so it’s clearly more efficient to add them directly ...