XCLN: How to Use the Outlook LDAP Service to View the Global Address List

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This article was previously published under Q245830

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SUMMARY

This article describes how to use the Lightweight Directory Access Protocol (LDAP) service in Outlook to query the Global Address List on the Exchange Server computer.

You can use the LDAP service in Outlook to query the Global Address List either anonymously or as an authenticated user. By default, Exchange Server allows anonymous access through LDAP protocol. If you want to connect anonymously, confirm that the User name and Password boxes are blank in the LDAP service properties.

Alternatively, you can log on by using your Windows NT credentials for authentication. You cannot log on by using the standard user name, domain name, and password syntax; you must enter the logon credentials in the following format:

User Name: CN=username,CN=WindowsNTdomainname
Password: password

If you enter the credentials incorrectly, you receive the following message:

The specified Directory Service has denied access. Check the Properties for this Directory Service and verify that your Authentication Type settings and parameters are correct.