Add the OIT LDAP directory server by clicking New to bring up the Add Directory Server dialog window. Choose OK . When back in the Add Directory Server dialog window, select OIT LDAP and use the up and down arrow buttons to adjust its position in the list. The Search window appears. Fill out the form and click Search .
Results appear in the window.
Highlight desired addressee. Choose Compose to compose a message to that person or Add to Address Book to add them to your Personal Address Book . use search function within the compose window In the New Message window, in the toolbox, click the Address button. This brings up the Select Addresses window. Fill out the form provided. It will only search by name.