SUMMARY

This knowledge base article explains how to configure an email client account to perform directory lookup queries using the MailEnable LDAP service.

DETAIL

Outlook Express:

1. Open Outlook and click on Tools>Accounts
2. Click on the "Add" button, and select the option that is labeled "Directory Service".
3. When prompted for the "Internet Directory(LDAP) Server" enter a domain name which resolves to the IP address of the mail server, or the IP address itself.
4. Tick the option for: "This server requires me to log on option", then click "Next".
5. Next specify the "username" (mailboxname@postofficename) and the "password".
6. On the next screen "Check E-mail Addresses" make sure to select "no" then click "Next".
7. Click "Finish".

Outlook 2000/2002:

1. Open Outlook and click on Tools>Email Accounts
2. Within the "directory" section tick the option "Add a new directory or Address book" and then click "Next".
3. Select "Internet Directory Service (LDAP)", then click "Next".  
4. Now in the field next to "Server Name" use a domain name which resolves to the IP address of the mail server, or the IP address itself.
5. Tick the option for: "This server requires me to log on option".
6. Next specify the "username" (mailboxname@postofficename) and the "password". 
7. Click "Next" and then "Finish".

Outlook 2003/2007:

1. Go to "Tools" and "Account Settings" and select the "Address Books" tab. On this tab click the "New..." button.
2. Select "Internet Directory Service (LDAP)", then click "Next".
3. Now in the field next to "Server Name" use a domain name which resolves to the IP address of the mail server, or the IP address itself.
4. Tick the option for: "This server requires me to log on option".
5. Next specify the "username" (mailboxname@postofficename) and the "password". 
6. Click "Next" and then "Finish".

Outlook 2010/2013/2016/2019:

1. Click the File tab,  and select the "Account Settings" option
2. On the window that appears, select the "Address Books" tab. On this tab click the "New..." button.
3. Select "Internet Directory Service (LDAP)", then click "Next".
4. Now in the field next to "Server Name" use a domain name which resolves to the IP address of the mail server, or the IP address itself.
5. Tick the option for: "This server requires me to log on option".
6. Next specify the "username" (mailboxname@postofficename) and the "password".
7. Leave Require Secure Password Authentication (SPA) disabled. This uses NTLM to authenticate, but the LDAP service does not support this.
8. Click "More Settings".
9. If you have changed the port for LDAP you can change it here. Make sure Use Secure Sockets Layer is not selected, as the LDAP service does not support this.
10. Select the Search tab, and under Search base select Custom option.
11. Next to the Custom option, enter "o=postoffice" (without the quotes), where postoffice is the name of the postoffice you are logging into. The custom option is needed, as otherwise the search will only be done on the personal contacts for the login.
12. Make sure the Browsing option is disabled. This is not supported by the server and will not allow you to search correctly.
13. Click "Next" and then "Finish".

Mozilla Thunderbird:

1. Click on the "Address Book" icon in the toolbar.
2. Next click on File>New>LDAP Directory.
3. Under "General" properties window use the following data:

• NAME = (postofficename) LDAP directory
• HOSTNAME = domain name which resolves to the IP address of the mail server, or the IP address itself.
• BASE DN = (blank)
• PORT NUM = 389
• BIND DN = mailboxname@postofficename

1. Under the "Advanced" tab for the search filter use the following: (objectclass=*)
2. Set scope to "subtree".

MORE INFORMATION

The MailEnable LDAP properties can be configured to return either:

1. Directory Contents (set by default) - publishes the postoffice directory addresses (Global contact list). 
2. All Email addresses - publishes the postoffice e-mail addresses