Directory Access

Directory Access

Microsoft Exchange 2000 Server Directory Access is a caching and abstraction layer between all Exchange services and Windows 2000 Active Directory. Exchange uses Directory Access to discover servers in your organization that Exchange services use to query Active Directory.

Because Exchange relies on these servers for Active Directory queries, Directory Access develops a topology of servers to ensure that Exchange always has servers for Active Directory queries and uses these servers in the most efficient way.

For help with specific tasks, see How To.

For general background information, see Concepts.

Answers to Frequently Asked Questions

Why is Directory Access not discovering new servers?

If you manually add servers to the topology, Directory Access will not discover other servers until you return to automatic discovery. When the Automatically discover servers check box is cleared, Directory Access uses only servers you specify in the topology and will not discover other servers until the check box is selected.

Why are Active Directory queries failing?

If you manually add servers to the topology, Directory Access will not discover other servers until you return to automatic discovery. When using a manually created topology, if domain controllers in this topology fail, Directory Access continues to use these servers for Active Directory queries. To ensure successful Active Directory queries, replace any failed servers in the topology or return to automatic discovery.