The Mailtraq Professional Edition includes an LDAP directory server (Lightweight Directory Access Protocol) that allows users with an LDAP capable mail client (such as Outlook) to search the Local Directory for user accounts and e-mail addresses.
With support for additional directory entries, this service is ideal for the large organisation where internal e-mail is commonplace.
You can also use LDAP to search addresses in mailing lists within Mailtraq. This enables you to have a shared corporate email address book containing external contacts' details.
You can set up Mailtraq with any number of LDAP services (on different ports) to offer access to any number of separate lists. LDAP is added to the normal services in the Console at Options | Services.
You can also allow the user to specify which list the LDAP service should map to by using the 'search base' field in the email client.
The LDAP service is not installed by default - you will need to add it as a service in the Mailtraq Console, at Options | Services . If you are accessing the LDAP service from outside your LAN, be sure to set your router/firewall Port Forwarding correctly.
LDAP defaults to providing Local Directory information, but you can also set a Mailing List (created for this purpose with imported users) to be the source.
[ ] Base Object specifies Mailing List
Most LDAP clients allow you to specify a "Base Object" or "Base DN". If "Base Object specifies Mailing List" and the given base object matches a mailing list, then the search is applied to the mailing list subscribers.
LDAP honors the Local Directory Visibility setting
KB05081902 How to set up LDAP - How to configure LDAP with an Outlook and Thunderbird examples.