ACCESS An out-of-the-box Exchange Server installation enables anonymous access to your organization's directory via the Lightweight Directory Access Protocol (LDAP) on TCP port 389. If your Exchange Server's TCP port 389 is accessible via the Internet or other network, users outside your organization can use LDAP to look up Internet addresses for recipients in your organization. Microsoft intended this feature to be useful, but you should be aware that it is easily misused. If you leave the anonymous LDAP enabled, savvy users can anonymously retrieve the Internet addresses of all of your organization's recipients and use the addresses to send unsolicited commercial e-mail or inappropriate messages. To disable anonymous LDAP for your entire site, use Exchange Administrator to open your site's Configuration container and expand the Protocols child container. Then highlight LDAP protocol in the right pane and choose File | Properties. In the resulting LDAP Site Defaults Properties dialog box, select the Anonymous tab and deselect Allow Anonymous Access. Then click OK. Now, any Exchange server in your site that is configured to use the LDAP Site Defaults Properties will no longer allow anonymous access to your organization's directory. NOTE: Disabling Anonymous LDAP access does have one unpleasant side effect--it renders Outlook Web Access to the server inoperable.
If I configure the LDAP Protocol on my Exchange server to see the referral LDAP Server. Do i need to configure each Outlook client as well or will the user be able to see the list of LDAP users just from the Server Config?
I tried to configure the server with the LDAP referral but I was not able to see a list of LDAP users like you can on your Global Address List. Isnt this the way it is supposed to work???
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