You can define address list memberships by selecting filter rules. The filters you select cause Exchange 2000 to search Active Directory for objects that meet your filter settings. You can define an address list based on general characteristics and field attributes.
The search type you select dictates how you define the address list query. The following table describes the three search types relevant to address list membership:
|Exchange Recipients||This category includes users, contacts, and groups, but may also contain, for example, public folders and system objects. The Exchange Recipients search is the default search type when creating a new address list.|
|Users, Contacts, and Groups||This category is limited to users, contacts, and groups.|
|Custom Search||This category is an LDAP-based search.|
Note Depending on the membership you are targeting, it may be possible to use more than one search category to get the same results; always use the most appropriate category for the address list you are creating.
Custom search enables you to type LDAP queries to define address list membership. Only Active Directory objects that meet the requirements of the LDAP queries you typed are listed as members of the address list.
Tip The basics of using LDAP-based searches can be learned by examining the syntax of an LDAP query. The LDAP query for any default or custom address list can be viewed on the General tab in any address list Properties dialog box.
Related TopicsCreate an Address Lists Define Search Filters Understanding Address Lists